Lufthansa First Class Terminal, Frankfurt, Germany

Designed by Frankfurt architects Hollin & Radoske in a former Frankfurt Airport parking lot, the €30 million, two-story structure is an beautiful appointed space awash in hand-tufted woollen carpets and bespoke designer fixtures. It’s available only to first class passengers or Lufthansa’s elite frequent fliers. Russet shades from B & B Italia, meantime, dull the daylight filtering into the cigar lounge, where some 36 single-malt Irish whiskeys are on offer. Boarding is unlike that at any terminal: it’s done via a chauffeured Mercedes S-Class or Porsche Cayenne that will elegantly whisk guests plane-side.