Next to the Leaning Tower of Pisa is a cemetery home to ancient sarcophagi and disturbing murals.

An incredible mosaic-lined monument said to have held the remains of an ancient Roman empress.

Italian poet Dante Alighieri is entombed in this small mausoleum in Ravenna, and his hometown of Florence has never been too happy about it.

A gorgeous medieval library where the books are kept in chains.

The San Marino-Rimini railroad was short-lived but this tunnel once provided shelter for hundreds of refugees during World War II.

High in the clouds of San Marino sits an ancient tower with some curious prisoner graffiti.

This hidden courtyard in the Andorran capital hosts a unique contemporary sculpture park.

This charming fountain honors Felix Salten, the creator of the iconic storybook deer.

Einstein's old locker at ETH is now a tiny museum

In one of the world's smallest countries, a royal's personal winery is open to the public.

Liechtenstein's royal family calls this medieval alpine castle home.

The oldest surviving wooden bridge over Rhine lets travelers cross easily from Switzerland to Liechtensten.

The fairy tale castle of the “fairy-tale king,” this was also the inspiration for Disney’s “Sleeping Beauty.”

A unique bridge with an equally unique view.

Terrifically morbid cemetary and site of famous Paracelsus' grave.

Epicurean and holy traditions converge in what may be the oldest restaurant in Europe.

Ugly 18th-century dwarf statues living in a perfectly landscaped Austrian garden.

The medieval network of canals hidden underneath the city is opened to explorers each year.

These 12th-century catacombs carved into a mountainside were a place of mysticism and Christian hermitages.

Amidst medieval and baroque buildings, five human-sized gherkins stand tall.

The inverted pyramid design of this station stands out amid Bratislava's urban landscape.

A massive sculpture of an obscure Celtic coin that has become a symbol in Slovakia.

Hungarian Jews were ghettoized during the Second World War, but little remains of the original wall that closed the Jewish people off from the rest of the city.

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