Hundreds of trees made from glass bottles make up this forest on Route 66.

The "Fun Spot of the Desert" is now a haunting ruin, and a reminder that putting a water park in a desert is a bad idea.

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

There are lots of hands and feet stamped in the cement in front of Grauman’s Chinese Theater, but Mel left behind something extra.

Once the largest windmill outside of Holland, with enormous 114 foot sails.

Guns that have been defending San Francisco since 1904.

A pair of mutilated bronze octopuses slump at the base of the monument honoring California's admission to the U.S.

The giant pair of sexy legs sticking out the window of this costume store have become its main draw.

San Francisco's oldest surviving monument and meeting place for 1906 survivors.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

This foreboding medieval castle was twice besieged by barons rebelling against the English king.

Seat of the Duke and Duchess of Devonshire for centuries.

Be on the lookout for the symbolic insect all over the city.

Northern Ireland's Brobdingnagian stepping stones.

The ruins of this medieval castle in Northern Ireland have inspired artists from C.S. Lewis to Led Zeppelin.

The lake that fills and empties itself at random.

This short bridge is the only thing connecting a tiny Irish island to the mainland.

Belfast's namesake river still winds below the city center, hidden from sight.

This Victorian-era public house has set the standard for pub-style elegance for over a hundred years.

Puerto Rico's once thriving oil company is now an abandoned wonderland of rusty steel.

This macabre masterpiece of a mural is one of Francisco Goya's "Black Paintings."

This nearly endless university hallway is home to a unique sunset known as "MIThenge."

The oldest surviving wood-frame building in North America is still in the family.