A church of bones, decorated with 40,000 human skeletons.

This doorless 20th-century elevator doesn't stop or slow down.

A 400-year-old mummified arm dangles from the ceiling of St. James the Greater, serving as a warning to thieves.

The first museum in the world devoted to sexual gadgetry.

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

Macabre astrological automaton clock dating to the late 1400s.

A plaque marks the spot where the saint was shoved off the Charles Bridge and into the river.

One of the famous Czech artist's lesser-known Prague installations appears to be a glowing fetus affixed to a drainpipe.

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

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

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

What looks like a suicide in progress is actually a statue of Sigmund Freud.

Looming communist pillar with a Czech twist.

Walk through Czech history in Prague's largest graveyard.

This giant crucifix is like U2's Joshua Tree for Swedish death metal fans.

Charles Babbage's proto-computer, painstakingly brought to life.

An ornate Thai pavilion in the middle of Sweden.

Not quite the cultural gateway between China and Sweden its designer imagined.

A botched 18th-century canal silenced one of Sweden's most magnificent waterfalls.

A plaque marks the house in Stockholm where the French philosopher René Descartes lived up until his death.

A wooden street sign is the last remnant of this 400-year-old alleyway.

Stockholm's narrowest alley is barely over two feet wide.

Hidden in plain sight, Sweden's official ordnance datum is now abandoned.

It's always game time at Stockholm's only museum devoted solely to video games.