This picturesque monastery at the base of a cliff is a peaceful oasis open to all visitors.

This 1000 year old relic-filled cave monastery and UNESCO World Heritage Site also hosts an amazing micro-miniature museum.

340-foot statue built to honour the Heroes of the Soviet Union.

One of the largest museums in Ukraine remembers the story of the German-Soviet War in iconic, brutalist style.

A reconstructed medieval gateway that was the magnificent entrance to the capital city dating back to 1037.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

This attraction was abandoned after the Chernobyl disaster.

This Nazi ruin was the site where Hitler was almost blown up by a suitcase bomb.

A small part of Russia that does not touch any other part of Russia.

An abandoned Jazz Age dream home and con man's hideout in Death Valley.

A massive hydrovolcanic explosion left a half-mile wide crater in Death Valley.

Megachurch turned Catholic church comprised of 10,000 glass panes.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

This massive redwood tree has a hole in the base big enough to drive through.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

The most visited, and possibly most controversial, museum in Germany.

The last remnants of a massive medieval wall that once encompassed the city of Berlin.

The site of a concentration camp where inmates were made to take part in one of the largest counterfeiting operations in history is now hauntingly empty.

Hitler's bleak vision of relaxation still stands as a mostly abandoned 10,000-room resort complex.

This unique Renaissance castle was turned into a home for Nazi occultism.