A collection of old neon signs from all over Poland line a secluded courtyard.

An abandoned underground bathroom is now a space for public art.

A collection of abandoned typographic signs from Berlin and beyond.

A marvel of technology a century ago, this disused power station now offers a lovely glimpse into the industrial design of the past.

The oldest surviving bridge in New York City, which reopened to pedestrians in 2015.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

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.

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

This rare wildlife haven in Singapore feels like you're in the tropical rainforest.

This museum is home to a sugar sculpture of the Berlin Airlift Memorial.

The skeletal frame of a decommissioned gas-pumping station offers breathtaking views of greater Berlin.

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

An abandoned swimming pool decays on the outskirts of Berlin.

When German-Iraqi relations broke down, this embassy was vacated post haste.

This World War II bunker now survives as a documentation of the Nazi regime and war crimes.

Gardens representing parts of Asia, Europe, and the Mid East are tucked away among the Soviet-style buildings in East Berlin.

A state-of-the-art medical facility from the Imperial era is now a derelict ruin.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.