A mysterious plaque to the even more mysterious "Fr. Pat Noise," killed in "suspicious circumstances."

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

On a teardrop-shaped island in the Danube, the ruins of a convent and the final resting place of a saint.

On Gellért Hill, this statue depicts the tragic tale of lovers divided by the Danube.

A highly-criticized monument in Budapest has become the site of a makeshift Holocaust memorial.

A scene from one of Hungary's most famous novels.

This sculpture honors the man who was known as the "Righteous Among the Nations."

A plaque bearing the names of those who dedicated themselves to protecting Budapest's Jewish population during World War II.

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

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

The mummified right fist of a 1,000-year-old saint-king sits inside an ornate golden reliquary.

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

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

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

The largest statue of this convex, homogeneous object with just one stable and one unstable equilibrium point.

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

This easily overlooked memorial immortalizes the scars from the 1956 Hungarian Revolution.

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

Museum dedicated to the terror regimes of Hungary.

Late at night, the bust of the "Dracula" actor was snuck onto the facade of this Budapest castle.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

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

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

The true meaning behind this sculpture remains unknown.