Number of Rooms: 6,118

This brightly-hued three-star megahostelry has thousands of rooms and facilities to match, from meeting rooms and a business center to a cineplex and casino. And for all its Olympian size—there are (count 'em) 32 check-in counters—it’s just one section of the First World Plaza, which includes an indoor theme park and 500,000 square feet of shopping. The First World Hotel is truly a world of its own, not only because of its mammoth size, but also because of its global décor, such as the tropical rainforest at the entrance and the lobby that’s decorated in the style of a traditional Spanish courtyard. The hotel washes 40 tons of laundry a day.

For more information: First World Hotel

Number of Rooms: 5,044

Guests know to expect opulence as soon as they arrive at the MGM Grand—the lion that guards its entrance is 45 feet tall and weighs 100,000 pounds, making it the largest bronze statue in the United States (perhaps even in the northern hemisphere). The hotel provides plenty of places to please its clientele, with six bars and lounges and more than twenty restaurants on the premises. Even the MGM Grand’s swimming pool is over-the-top: A 1000-foot-long flowing river pool is the highlight of the hotel’s 6.6-acre pool complex.

For more information: MGM Grand

Number of Rooms: 4,408

Why run to Egypt when you can stay at the Luxor? True, with 4,408 rooms, you may not feel like a pharaoh, but at least you'll have company. There is the impressive pyramid structure, but there's also Carrot Top, the comedian-in-residence (you must be 18 or older). Luxor is also home to Cirque de Soleil, and hip party types should check out the hotel’s LAX Nightclub. The Luxor offers equally enthralling activities for younger travelers, too, such as IMAX Ridefilm motion simulator rides, an IMAX 3-D theatre and a game arcade. The property’s 120,000 square feet of gaming space will be completely remodeled by May 2008.

For more information: Luxor LAs Vegas

Number of Rooms: 4,332

As the location of the famous House of Blues, Mandalay Bay is the spot for travelers looking to be entertained inside and out of the (ear-splitting) casino. The hotel complex also houses the Mandalay Bay Events Center, which hosts concerts, boxing matches, and annual events like the Ultimate Fighting Championship. Plus, an annual summer concert series is held overlooking the wave pool at the beach at Mandalay Bay, which features real sand and a lazy river. Not up for a swim? Check out the Shark Reef aquarium, home to over 2000 animals, and that’s not counting the card sharks.

For more information: Mandalay Bay

Number of Rooms: 4,239

This Thai hotel is all about surf and sports. Featuring forty acres of coastline, the Ambassador City Jomtien has amenities such as a jogging track, a tennis court, a squash court, and swimming pools. There’s a salon, spa, and barber shop, too, so getting pampered is certainly an option for those who don’t equate physical exertion with a relaxing vacation. There’s also a library, pharmacy, shopping, restaurants, and a business center, so no need to high tail it to Bangkok for a Snickers bar.

For more information: Ambassador City Jomtien Hotel

Number of Rooms: 4,027

Cobblestone pathways, serenading gondoliers, and a network of canals make it clear that The Venetian is aptly named. Go for a romantic fake gondola ride or go shopping at the Grand Canal Shoppes at this hotel, and a few Bellinis later, fancy yourself vacationing in Venice, instead of Vegas! (For full fool-yourself effect, make that a lot of Bellinis). To add to its putative European flair, there’s the on-premises Guggenheim Hermitage Museum. However, those looking for traditional, over-the-top Las Vegas fun won’t be disappointed, because The Venetian has all the staples of a Las Vegas hotel: an 11,000 square foot poker room, more than a dozen restaurants and bars, a business center, and a theater.

For more information: Venetian

Number of Rooms: 4,008

If you thought Sleeping Beauty's castle at Disneyland was a pale imitation of the real McCoy, you obviously haven't been to Excalibur, whose ersatz castle is one of the earliest known examples of Las Vegas’ giddy appropriation of history for commercial purposes, and one that would either make Uncle Walt proud or make him cringe. Kids might enjoy The Tournament of Kings jousting show, but the ladies and maybe even a few of the gents will get a bigger kick out of the Thunder from Down Under revue, where the hotel’s "knights shed their armor." Anything to get you out of the undersized, largely nondescript rooms. Headache from all that casino noise? Ambient lack of charm bringing you down? The 13,000-square-foot Royal Treatment Spa has what it takes to perk you up.

For more information: Excalibur

Number of Rooms: 3,933

Danny Ocean and his partners-in-crime marveled at the beauty of the Fountains of Bellagio at the end of Ocean’s Eleven, and you can too, if you stay at the Bellagio in Las Vegas. Go for the glam and rent one of 52 private pool cabanas, enjoy a stroll through the Conservatory and Botanical Gardens, or add some culture to your vacation by perusing the Bellagio Gallery of Fine Art. Make sure to treat your taste buds, too… the Bellagio is the only hotel in the United States to house two AAA Five Diamond restaurants, the Picasso and Le Cirque.

For more information: Bellagio

Number of Rooms: 3,773

If you’re going to get married in Vegas, you might as well go all out—head to Circus Circus’ Chapel of the Fountain, the first and longest-running wedding chapel at a hotel/casino in Las Vegas. Circus Circus isn’t only for newlyweds, though. The Adventuredome Theme Park at Circus Circus is the biggest indoor theme park in Nevada, and the hotel’s Midway Stage is the world’s largest permanent circus, with a big top that measures 90 feet tall. But leave the clowning around to the professionals.

For more information: Circus Circus

Number of Rooms: 3,565

Sometimes referred to as The Pink Hotel due to the structure’s neon color, The Flamingo Las Vegas opened on New Year’s Eve 1946 thanks to the backing of Benjamin “Bugsy” Siegel, infamous for his ties to the Meyer Lansky criminal ring. Given such lore, the hotel has been portrayed in various films and fictional works such as Ocean’s Eleven (the original as well as the remake) and Fear and Loathing in Las Vegas. After numerous ownership changes and an overhaul in 1993, The Flamingo is now owned by Harrah’s Entertainment and offers 3,565 affordable rooms to visitors looking to spice up their stay with a dash of Sin City history.

For more information: Flamingo

Number of Rooms: 3348

Named in honor the Roman general (and later emperor) Julius Caesar, Caesars Palace aims to give its guests the royal treatment. With 3348 lofty rooms divided among five towers, the hotel also boasts Roman style pools and marble statues, gourmet culinary experiences such as Guy Savoy as well as world-class entertainment with Celine Dion and Elton John as regular performers. For some, the decadence and kitsch factor might be off putting but that didn’t stop Frank Sinatra from being the resort’s Entertainment VP in his day, or keep heavyweight boxing champ Joe Louis from serving as the hotel’s host and official greeter for many years.

For more information: Caesars Palace

Number of Rooms: 3250

Why? Waikiki. Straddling Hawaii's best-known beach, the Hilton Hawaiian Village Beach Resort is also near the world’s largest open air shopping center (the Ala Moana Center), and features many super-sized attractions of its own. These include a titanic beachfront pool set amid spectacular tropical surroundings, a weekly Polynesian revue and fireworks show, as well as an outdoor wildlife habitat that’s home to flamingos, peacocks and even a group of South African blackfooted penguins (formerly known as jackass penguins).

For more information: Hilton Hawaiian Village Beach Resort and Spa

Number of Rooms: 3066

Opening December 20, 2007, The Palazzo promises to provide its guests with a posh, palatial atmosphere (or at least a very close approximation of one). The Shoppes at the Palazzo will feature an 85,000 square-foot Barneys New York, and a spa will be there to provide succor for all those wrists strained by too much platinum card lifting therein. At a total of seven million square feet, this newest addition to Las Vegas’ hotels is yet more proof (not that we needed it) of just how much size matters in Nevada.

For more information: Palazzo

Number of Rooms: 3044

With a construction cost of $630 million, The Mirage was the most expensive hotel/casino built in history when it opened in 1989. It was reported that the resort would have to bring in a million dollars daily to pay off a 7-year construction loan, leaving skeptics to predict that developer Steve Wynn’s financial gamble was doomed for failure. As it turns out, The Mirage was so successful that the debt was paid off in a mere 18 months and the high profile project set new standards for Vegas resorts ever since. Pamela Anderson recently got hitched to home video hotshot Rick Salomon here, solid evidence that in addition to its status as one of the world's biggest hotels, the Mirage is also one of the classiest.

For more information: Mirage

Number of Rooms: 3002

Modeled after the luxurious Place du Casino in Monte Carlo, the eponymous Las Vegas version features chandelier-graced domes, marble floors and neoclassical arches to offer its probably less than royal clientele a piece of Old Europe charm minus the jet lag, and without all that overwhelming authenticity. Although it was once the world’s seventh largest hotel, the same cannot be said about the rooms themselves, which according to a Frommer’s review are “unimaginatively decorated and smaller than customary, especially in terms of bathroom square-footage.”

For more information: Monte Carlo

Number of Rooms: 3000

Large enough to hold ninety Boeing 747 jumbo jets, the Venetian Macao opened the doors of its 3000 suites this summer to eager visitors, bolstering the peninsula’s reputation as the Chinese Sin City in the process. According to the company, the $2.4 billion project is the largest single-structure hotel in Asia and the second largest building in the world. As future projects are being discussed for a Cotai Strip (a concentrated resort area similar to the Vegas counterpart), the Venetian Macao is already enjoying its first mover advantage with world class entertainment bookings such as a Cirque du Soleil residency show, appearances from the Manchester United and the NBA, as well as a Tennis Showdown between current superstar Roger Federer and former champion Pete Sampras.

For more information: Monte Carlo

Number of Rooms: 3000

The words “Hilton” and “Las Vegas” don’t necessarily conjure images of value and spaceships, unless you are referring to the Hilton Hotel located off the Strip but still conveniently serviced by the monorail. Here, budget conscious travellers and Trekkies alike will be delighted to find clean, hospitable accommodations at a reasonable price along with entertainment options such as Star Trek: The Experience and resident headliners Reba McEntire and everybody's favorite Mandy-holic, Barry Manilow. Any witches in your traveling party? The Las Vegas Hilton is one of few hotels to not suffer from Triskaidekaphobia (fear of the number 13) by having a 13th Floor.

For more information: Hilton Las Vegas

Number of Rooms: 2916

What better way to say bonjour to Las Vegas than by checking into the hotel that's home to a half-scale replica of the Eiffel Tower? Go for one of the 295 suites, even though their names - Suite Le Mans and Suite Calais - have about as much to do with Paris as L.A. does with Cleveland. Amuse yourself at the cheerfully misspelled Gustav's Casino Bar. For a nominal daily fee, unwind in the 31st-floor Le Rendez-vous Concierge Lounge. Trade in views of the Seine from the opulent Pont Alexandre III for views of the casino's slots and video room from an ersatz Alexandre III bridge. And right outside the hotel's entrance, admire a two-thirds scale replica of the Arc de Triomphe, with the names and dates of Napoleon's major casino wins inscribed right on the monument (oh, pas vraiment).

For more information: PARIS LAS VEGAS

Number of Rooms: 2885

Although “buccaneers and buried gold” were the inspirations behind Treasure Island’s Caribbean theme, management is courting a trendy younger crowd these days by nicknaming the hotel simply as - yarrr, 'tis true - TI. Consequently, the signature skull-and-crossbones entrance has been replaced by a video screen and the lively pirate battle once known as Buccaneers’ Bay is now a sexy aquatic show called Sirens’ Cove. Thankfully, TI is still featuring Mystere, a Cirque du Soleil production and nine-time winner of the Best Vegas Show title, according to the Las Vegas Review Journal’s reader’s poll.

For more information: Treasure Island

Number of Rooms: 2881

Stay here and you can partake of complimentary shuttle service to the Grand Ole Opry, a legendary country and bluegrass music fest that's billed as the world's longest-running radio show. The property features nine acres of indoor gardens, replete with a 44-foot waterfall, and a re-created Delta river town with shops and restaurants. Roll down the Cumberland River aboard the resort's own General Jackson Showboat. And look out for DiVine: she’s part actress, part vine, and she moves about the resort's gardens as only a creature of her ilk could. And did somebody say “middle of nowhere”? Not so: Gaylord Opryland is located within a one-day's drive of two-thirds of the country's population.

For more information: Gaylord Opryland