This enormous "cloth of the conquest" depicts the Norman invasion of England in mind-blowing detail.

This triumphal 16th-century arched gateway leads to the oldest street in Palermo.

Artistic tombs, monuments, and a beautiful "Hall of Fame" lurk inside this cemetery.

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

Does this strange mural depict witches battling beneath a penis tree?

These gutted monastery ruins still stand proudly in the middle of the Italian countryside.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

Legend says this mysterious stone head belongs to a woman who was petrified by an alchemist.

This poignant art installation raises awareness of violence against women.

While the U.S. and Soviet Union were engaged in a space race, Poland built a UFO on the ground.

Every day is like Christmas on this street where the traditional Neapolitan nativity scene comes to life.

One of the highest mountain passes in Europe has been ranked among the best driving roads in the world.

This quiet, unassuming spot in Budapest was the birthplace of the bloody 1956 Hungarian Revolution.

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

The oldest garden in Prague, once part of an medieval orchard.

A patriotic medieval knight in driven-nail armor raised money for widows and orphans of WWI.

Tucked away in a Prague park, a statue beloved by romantics honors a poet so nice they buried him twice.

Now abandoned, the world's first torpedo factory is crumbling into the sea.

This scale model of our solar system hid in plain sight for years before a physics team sought out all the planets.

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

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

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

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