Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

One man's attempt to create an artistic wonder on a run-down block in Detroit.

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

A vertically floating hemlock controls the waves and weather at Crater Lake.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

This striking art museum holds an amazing series of curiosity cabinets.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

The largest collection of artifacts from the Olmec civilization, the mother culture of Mesoamerica.

This stunning and ethereal mural symbolizes the beauty, unity, and diversity of humankind.

This colossal ancient jaguar sculpture was used as a vessel for the hearts torn from sacrificial victims.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

On the Hudson resides one of the largest clocks in the world.

World Trade Center memorial likened to a woman's sexual organ.

This massive boulder is either a unique rock formation created by glacial melt or a magic energy vortex.

Every year, the colorful murals of Montreal get a complete makeover.

This 1967 experiment in modular architecture was designed to be a new model for urban living.

A contemporary fresco movement illustrates the region's rich history.