This historic structure has been used as a mosque, a barracks, a prison, a school, and a bakery.

The ruined doorway is a portal to the building's turbulent and torturous past.

An ancient octagonal weather station named for the eight Greek gods of wind.

This Ottoman-era Greek Orthodox Church was built to honor Agia Pareskevi, a Christian saint.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

A triumphant marble and bronze fountain depicting a 15th-century Hungarian king and his hunting party.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

The geographical center of Budapest is marked with a 10-foot-tall stylized zero.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

A stone woman in a stylized dress honors a courageous politician.

This building has survived for more than a century and remains virtually untouched.

A statue in Budapest's Liberty Square honors the former U.S. president's efforts to end the Cold War.

This Budapest bar allows drinkers to leave their mark on the walls, floor, and even ceiling.

From cartoon characters to tiny tanks, a guerilla sculptor's little bronze statues are hidden throughout the city of Budapest.

This off-beat, quirky communism-themed bar isn't afraid to poke fun at its history.

A random tree outside a Budapest hotel has become a DIY shrine to the late singer.

Electrical curiosity museum housed in an old transformer station.

A much-loved sculpture depicting the hero of a 1956 anti-Soviet uprising.

Uh, pardon me, ma'am, but I couldn't help noticing that there's a Columbo statue in the middle of Budapest.

A 13th-century convent where St. Margaret of Hungary spent her teenage years.

The metal leaves on this tree are engraved with the names of Holocaust victims.

The holes in this wall provide a glimpse into Jewish life in Budapest, both past and present.

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

This demon atop the Notre-Dame de Paris looks utterly bored.