In the mid-1800s, Detroit was a key stop on the Underground Railroad, through which thousands of slaves escaped to Canada. This and other aspects of African-American heritage, from African roots through slavery and civil rights struggles, are celebrated at the world's largest museum of African and African-American history and culture. Allow 1 hour.

Copyright: Excerpted from Frommer's USA, 10th Edition, (c) 2008, Wiley Publishing, Inc.

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