Despite a fraught and controversial history this African island holds a powerful monument to the tragedy of the slave trade.

This tiny, tranquil Senegalese island serves as a powerful symbol of the Atlantic slave trade.

Over 4,700 miles of trees being planted to hold back the desert.

This series of rope-style bridges brings visitors into a jungle layer that is usually reserved for birds and monkeys.

Where thousands of slaves passed through the "Door of No Return."

A monument to the more than one million enslaved Africans deported from the port of Ouidah.

The abandoned Bermudian home of a British naval leader is surrounded by crumbling sporting fields and the graves of convicts.

Once a strategically imperative naval base, portions of this Bermuda dock complex now serve cruise ships.

Everyone's invited to put on a miniature concert with this world-class musical wonder.

Lovingly nick-named the "Brick Dick" this municipal tower was winner of the World's Most Phallic Building Contest.

Weighing 30,000 pounds, this monument represents Detroit's first industrial era.

What was once the largest NFL stadium.

Over 60 chemical plants and oil refineries sit in a 15-mile-wide section outside town.

Accessible only by train, the beauty of Agawa Canyon Wilderness Park is worth the journey.

Unique Michigan homes look like something out of Tolkien's "The Lord of the Rings."

Hell on Earth is actually a small town in Michigan where anyone can be mayor for a day.

The remains of an abandoned dinosaur theme park litter the woods just off the highway.

Dilapidated Mayan-themed ballroom was one of Detroit's most popular venues through the 40s.

Glass and concrete building designed by Albert Kahn.

The concrete shell of an industry giant remains as a playground for graffiti artists, auto scrappers, and paintball warriors.

A Beaux-Arts triumph set to become Ford's innovation campus

This public baseball field is a beloved remainder from of one of the most historic stadiums in the country.

This sprawling bookstore spans four floors and has more than a million books in stock.

This railway-turned-greenway provides a pedestrian link in downtown Detroit and celebrates urban artwork.