Pivotal home of Nobel Prize winner Pablo Neruda.

This was once the center of the Birdman cult, and is now a World Heritage Site.

This Japanese-inspired labyrinth of hot springs is hidden in a Chilean forest.

The largest stone moai on Rapa Nui.

An alley covered with 20 years of bubble gum.

A hotel and restaurant serving as the mecca of kitsch.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

"Girl in a Wetsuit" is what happens when a sculptor has to find a way around a 100 year old copyright.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

A burnt orange monolithic dome structure perched on a hillside near Interstate 280.

Concrete strongholds stand guard over the Golden Gate.

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

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

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

An elaborate gift from Claus Spreckels is now a piece of San Francisco history.

Golden Gate Park's historic collection of plants.

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

A field in which God and his son Jesus purportedly appeared to a young farm boy named Joseph Smith.

The birthplace of America's favorite fruit-flavored mystery dessert.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

An exotic wildlife habitat right off The Strip.

Hide from the tourist hordes in these relatively unknown, and unguarded lava caves.

This black shoreline is made up of exploded lava particles.