A remarkable cabinet of curiosities in an art space in the center of Berlin.

Art installations, derelict railcars, and endangered grasshoppers all call this south Berlin park home.

This monumental work of art symbolizes the coming together of a previously divided city.

This concrete residential area doubles as an open-air gallery.

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

Cold war icon and onetime "hole" in the iron curtain.

A 12th-century fortress containing some of Berlin's oldest buildings.

Home to 10,000 medical specimens including the remains of Rudolf Virchow's extensive collection of pathological specimens.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

An eerie, derelict amusement park in Berlin.

A surreal museum of extraordinary industrial objects.

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

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

The oldest botanical garden in the world that technically isn't the oldest.

Remnants of a 4th-century church with vivid medieval frescoes and ancient sarcophagi hide beneath this old basilica.

This ancient market is often referred to as the oldest shopping mall in the world.

Small on the outside, big on the inside, this church is an astonishing act of visual deception.

Long-abandoned art nouveau baths beneath Milan's Piazza Oberdan.

A fairytale island floats in the middle of Italy's little-known Lake Orta.