Bullet holes in the church wall are a reminder of the violence that followed the assassination of a high-ranking Nazi officer.

A surreal statue honoring Prague's favorite literary son.

Straight out of a nightmare, barcode-faced babies climb up and down Prague's television tower.

A plaque marks the spot where the saint was shoved off the Charles Bridge and into the river.

Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.

Hidden behind musical flora and forgotten for over a thousand years, this cave is now a neon dream.

This 14th-century temple is also known as the "Temple of the Golden Pavilion" for its gorgeous gilded reliquary hall.

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

Peace Park and the Atomic Bomb Dome.

A plaque marks the site directly below the mid-air detonation of the atomic bomb over Hiroshima.

Japanese national treasure originally built in 593 CE.

Started nearly 100 years ago, this science experiment just keeps on going, ever so slowly.

An oversized Van Gogh reproduction is one of three massive sunflower paintings across the globe.

These tracks are believed to be from a panicked dinosaur stampede.

Every birth, death, and marriage is recorded in these color-coded leather-bound books.

Colorful concentric circles honor a small Croatian town's supposed spot at the nucleus of it all.

Now harmless, this looming post struck fear into the heart of medieval troublemakers.

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

Where the lovelorn find a home for their sentimental keepsakes.

A musical instrument played by the sea.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

The big toe of this towering monument to a Croatian national hero is worn from years of superstitious rubbing.

Nine bronze hands protruding from a wall honor the student uprising that led to the fall of Czechoslovakia's Communist government.

Monument to a suicide protesting the Soviet invasion.