Once a black market electronics marketplace, now an otaku shopper's paradise.

Colloquially known as “piss alley,” this narrow street filled with tiny bars and barbecue stands looks like it was pulled straight out of “Blade Runner.”

Every color in the rainbow awaits.

Not quite the menace it once was, this monster still has some chops.

A 20-meter (65-foot) robot towers over Tokyo Bay.

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

The 10,000 Torii shrine.

This 700-year-old street food market features baby octopus and soy donuts.

This pseudo-steampunk weapons facility is the world's largest wood and glue structure, and packs quite a wallop.

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

The deepest metro station in the world.

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

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

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

This extensive collection covers thousands of years of Polish military history.

A former imperial sea-fortress and Soviet prison.

This medieval Estonian tower provides access to a series of tunnels that have been home to soldiers, punks, and fine art.

"There's nothing there," and other lies the KGB told us.

A former Latvian headquarters of the brutal KGB secret police is now open as a grim reminder of their atrocities.

This micro-nation may be some sort of prank, but its constitution sure seems official.

This former KGB building is now a museum memorializing the people who suffered during the Soviet regime.

A small monument in Lithuania marks the geographic center of Europe—or at least one of the claimants.

Moscow's imposing monument to the Space Age.

The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.