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

Museum dedicated to the terror regimes of Hungary.

This ancient settlement contains some of the largest earthen mounds in North America.

This hunter-gatherer architecture is believed to be the oldest religious complex known.

This castle played host to the largest great hall found in medieval Central Europe.

Inside the Šomoška National Nature Reserve exists a unique rock formation rarely seen in the world.

Hungarian mummies in beautiful painted coffins.

The abandoned "Red Star Train Graveyard" is the final rusting place for precious artifacts of train history.

The world’s first statue of the late Apple co-founder.

A two-way chairlift system between Zugliget and the highest point in the city.

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

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

A collection of intricate sculptures so small they have to be seen through a microscope.

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

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

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

A small Chicago museum filled with thousands of preserved butterflies, beetles, and more.

A Hungarian pharmacy museum with a box full of mummy powder.

A series of caves under Castle Hill that once held the prisoner Vlad Tepes, better known as Count Dracula.

A museum in the childhood house of a medical pioneer.

A giant bug impaled on a 75-foot-tall needle.

Climb inside an iron crystal magnified 165 billion times its normal size.

A fantastical 13th-century fortification sandwiched by a modern hotel in central Brussels.

Medical history with an amazing, if frighting, collection of wax diseases on display.