This unassuming museum's slogan translates to “there is a limit of sadness, anxiety has no limits."

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

Stockholm's narrowest alley is barely over two feet wide.

The haunting complex honors the millions of Ukrainians who died in the forced famine under Soviet rule.

The deepest metro station in the world.

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

This derelict superstructure was a very important warning system for the Soviet military.

One of the most poignant ruins of the Chernobyl nuclear disaster, the local football team's stadium has been quickly reclaimed by nature.

This attraction was abandoned after the Chernobyl disaster.

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

Monumental sculptures guard many of the graves, transforming this necropolis into an open-air fine art museum.

This unique Lady Liberty is one of the only examples of the figure sitting down.

Situated on a sacred Inca site, this 16th-century cathedral took nearly 100 years to build.

A futuristic, brutalist masterpiece that is also strangely prison-like.

Two distorted Romanesque columns hold aloft a mine cart in honor of laborers who died during WWII.

This massive monument was unveiled the day Kosovo declared independence from Serbia.

This statue and park honor the Swedish chemist Jacob Berzelius, one of the founders of modern chemistry.

Freddie Mercury's childhood home is now a monument to the iconic Queen rockstar.

This Parisian gem is one of the most incredible ethnographic museums in the world.

A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

Built on the remains of one the Incas’ most important gathering spots, this square keeps the spirit of a fallen empire alive.

This Ukraine alleyway has become its own little island of forgotten things.

These mysterious Viking chess pieces spent centuries hidden on a remote Scottish island.

This marine reptile was discovered by one of the 19th century's greatest fossil hunters.