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

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

Time stands still at this serene burial ground in the center of Budapest.

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

Once the home of a hermetic monk, this cave now houses a small church.

A triumphant marble and bronze fountain depicting a 15th-century Hungarian king and his hunting party.

The skull of the patron saint of lovers lies in the Basilica di Santa Maria in Cosmedin—maybe.

One of the most important yet well-hidden museums dedicated to the history of medicine.

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

The hidden lair of an alchemist rediscovered in a 2002 flood.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Behold, a collection dedicated to Germany's favorite vegetable.

Visiting this café is like visiting the Austrian grandma you wish you had.

Macabre museum devoted to historical Viennese murders.

The Habsburgs' royal collections of art and wonders.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

A magnificent collection of imperial armor and weaponry.

Housed in an old church, this hunting museum holds a collection of mythical bird-rabbit creatures.

This magnificent museum claims to house the cranium of a disciple and the skull of a pope.

A steampunk-styled three-floor factory churning out art, activism, and electronic beats.

The first museum in the world devoted to sexual gadgetry.

This artificial cave looks like something out of a fairytale.

Walk through Czech history in Prague's largest graveyard.

This former quarry is now a picturesque gorge that hides a sunken lake.