An abandoned swimming pool decays on the outskirts of Berlin.

This tiny museum's sizable collection is jammed into a former underground public toilet.

Another of California's unused Cold War missile defense complexes has become a graffiti gallery.

This former Baroque palace on the historic Calle Montcada is a rare architectural gem and was once the meeting place of an aristocratic scholarly society.

Spiral labyrinth hidden in the hills above Oakland, CA.

One of the only Florida forts to remain in the hands of the Union all through the Civil War still stands as a historic stronghold.

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

Spanning the El Chorro gorge, this pathway used to be one of the most dangerous crossings in the world.

One of the world's largest telescopes, stares into the night sky with two huge mirrors.

An abandoned hotel in the highlands of Bali is shrouded in stories of ghosts, curses, and corruption.

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

A playground built by the kids that is a child's wonderland, and a helicopter parent's nightmare.

The wild west is still alive and well at this authentic mining town watering hole.

Bubbling up from deep underground is the warm crystal clear water that fills the Warm Springs Pools, America's oldest spa.

Blitzkrieg bop your way through Berlin's Ramones Museum.

Storybook cottage in Beverly Hills was once the site of 1920s silent film studio, affectionately known as "The Witch's House."

What was once a trend-setting, phrase-coining icon of architectural splendor is now a rotting, forgotten hulk.

Founded by members of the Tohono O’odham Nation, this one-room joint's James Beard–winning fry bread is light as a cloud.

The hidden jewel of Disneyland: a members only playground for the Disney elite.

The abandoned train depot now doubles as a well-placed rest stop for those who take the road less traveled.

A beloved carnival gets a modern makeover in Los Angeles.

A Mysterious Masonic tomb in San Luis Obispo.

The "3rd largest" city in California is an empty mirage of suburbia in the middle of nowhere.

Natural rock water slides hidden in the remote forests of northern Idaho.