An ode to a soldier who came to town, fell in love, then began making his own sparkling wine.

A sculpture of a beloved local figure, who tipped his top hat to everyone he passed on the streets of Bratislava.

Launched by Napoleon's soldiers more than 200 years ago, a cannonball remains embedded in the tower wall.

Brass plaques embedded in pavement preserve the memories of those who lost their lives at the hands of Nazis during World War II.

Also known as the Blue Church, the building was consecrated to the daughter of Andrew II.

This walkway is so narrow it needs its own light to stop pedestrian traffic jams.

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

Increasingly decayed figures stand as a powerful reminder of the human costs of Czech Communism.

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

The footprint of a frustrated devil in Munich's Cathedral.

The massive, incredibly rare instrument is over 11 feet tall with a range so deep it goes lower than humans can hear.

The prototype for all Nazi concentration camps.

A museum dedicated Germany's favorite drink and most well-known festival.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

Four hundred granite steps were built into this massive rock by the National Park Service.

Thousands of turbines whir at at the origin of North American wind power.

Where a railroad loops under or over itself to rise or drop more than 70 feet in a short distance.

Quite simply the largest tree in the world (by volume).

Crafted in 1911, this steam locomotive spent its entire working life in Flagstaff.

One of the most extensive and well-preserved collections of dinosaur footprints in North America.

Hidden inside this Arizona fast food franchise is an in-depth exhibit on the famed WWII counterintelligence program.

Some of the tallest ancient American ruins continue to inspire awe and curiosity.

Christ's blood preserved in a Belgian town.

More than a century old, this trading post resides in the Navajo Nation.