Places hlilje Wants to Go

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

Two stunning 17th-century libraries and a cabinet of curiosities.

Countless grotesque faces stare out from this eerie Prague art wall.

Though they've since been renamed, these two streets hint at Dublin's darker days.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

One of Ireland's most infamous prisons for rebels including men, women and children.

Super-heavy Nazi architectural experiment.

The randomness of this wall of lava lamps helps encrypt up to 10 percent of the internet.

The television series' iconic giant foot was borrowed from this classical painting.

The world's oldest individual clonal tree looks like a wimp despite standing tall for 9,550 years.

Sweden's first electric elevator remains hidden within a fortress-like building.

This gem from the industrial age helps visitors and residents alike traverse hilly Stockholm.

The discovery of an old wall led to the creation of this fascinating museum about the city in the Middle Ages.

This castle ruin in the middle of nowhere is a gem for wildlife enthusiasts.

Dedicated to a song so popular the request to "Play Shoreline" became part of Swedish culture.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

The internet as provided by a James Bond villain.

Early habitat dioramas and home of the elusive gaff, the skvader.

A 250-year-old timepiece-automaton adorned with golden mechanical birds, which still sing to this day.

An ever-growing literary collection housed in the apartment where the Russian author penned his final novel.

A scale model of Russia so big visitors are offered binoculars to rent so they can see the whole thing.

A surreal pile of colorful junk fills a small yard in an otherwise gray neighborhood.

Dark, eerie exhibits make for a surreal exploration of the subconscious.

Palace where the nearly un-killable Rasputin was murdered.