These crumbling Latvian forts make for some haunting seaside ruins.

Guests become prisoners on a visit to Latvian prison.

A madman's personal garden filled with 1,000 sculpted heads.

Leveled by an earthquake, this Italian village is now preserved as a massive concrete art project.

The world's most active stratovolcano is almost always erupting.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

Secret Soviet city once home to Russian cosmonauts and space training facilities.

World's oldest and largest space launch facility, once a secret missile testing site.

Pompeii's less famous neighbor is still revealing her secrets.

The studio built by fascists in the hopes of "reviving the film industry" with the occasional propaganda film opportunity thrown in.

The charmingly disheveled clock tower of Tbilisi's puppet theater.

Unusual building appears to be haphazardly built from randomly piled bricks.

Ancient rock-hewn town that witnessed key events of Georgian history.

Home to nearly a third of the world's mud volcanoes, Azerbaijan is home to a messy, bubbling, and sometimes explosive landscape.

Upside-down trees serve as natural flower pots in this hanging garden of Alaska.

Breathtakingly blue walls shimmer inside the "Glacier Behind the Town."

This tumultuous Icelandic lava field looks so alien European researchers want to use it as a stand-in for Mars.

The largest volcanic caldera in Japan holds an entire city in its maw.

This shrine to film's most iconic wasteland wanderer is located in the very outback where the movies were shot.

A museum dedicated to the least secret spy is actually an attempt to get Hollywood's attention.

Rusting ships sit in a desert where a sea used to be.

Largest graveyard in all of Japan surrounds a famous mausoleum.

The giant figure on the back of this turtle-shaped temple actually hides a memorial pendulum.