Legend has it the commander of the defenders drew a fateful line in the dirt with his sword just before the final battle.

These boots are made for selfies.

One of Hollywood’s favorite government buildings.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

Back in 1952, you could get a mushroom cloud chaser with your atomic cocktail.

The fossilized remains of ancient California redwoods.

A tribute to the life and work of the beloved "Peanuts" cartoonist.

340 bicycles, 65 feet high.

A display of magnificent stained glass windows is the first exhibit of its kind.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

Glass and concrete building designed by Albert Kahn.

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

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

This empty Detroit high school was too expensive to maintain or destroy.

These enduring murals depicting a distinctly Marxist tribute to capitalism could not even be defeated by McCarthyism.

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

This Detroit ruin was once a gothic bastion of its community, but now it stands as a haunting ruin.

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

Thousands of crosses and markers for soldiers who lost their lives in Iraq and Afghanistan blanket a California hillside.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

The key to turning shifting dunes into the green oasis of Golden Gate Park.