The final resting place of many of Germany's most famous communists.

A stunning cemetery famous for its extraordinarily delicate & lifelike mourning sculptures.

The natural history museum displaying the British bird collections and dioramas of Edward Booth, free of charge.

This stoic bronze soldier stands as a symbol of Russian sacrifice or Soviet oppression, or maybe both.

There is a mouldering Jewish cemetery hidden away in the capital of Moldova.

Beneath an ancient wishing tree lies an underground chapel with 12th-century frescoes and catacombs dedicated to a lady saint.

An ancient necropolis of magnificent tombs.

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

An unfinished Serbian Orthodox church with 1,389 golden crosses planned to represent the Battle of Kosovo.

These abundant, over-the-top monuments are so widely scattered that they define the entire compact capital cityscape, often leading to jokes about whether there are more statues than residents.

Different sections of the Zemun Fortress were built in the 14th and 15th century as a response to the advance of the Ottoman Empire.

The "Mona Lisa" of funerary art.

Macabre astrological automaton clock dating to the late 1400s.

This quarry filled with 65 million-year-old limestone is now home to a nature reserve.

This former hospital was once one of the oldest mental health facilities in Europe.

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

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

The biblical sculpture honors those who lost their lives, homes and communities to the Chernobyl disaster.

The industrial monstrosity known as Bagger 258 is a colossal mining machine built in the DDR - but now left for dead in a German field.

The music is over at the Ballhaus Riviera Ballroom, but the ballroom remains in haunting disrepair.

One of the oldest cemeteries in Germany was originally used for victims of a cholera epidemic.

An eerie, derelict amusement park in Berlin.

The former Nazi Germany concentration camp stands as a museum to remember this dark chapter in European history.

An old hill fort covered in over 100,000 crosses is a symbol of Lithuanian nationalism and beliefs.