Vast stretch of tide-pools with a unique Moroccan charm.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

Traditional 11th-century outdoor tannery.

Crumbling necropolis set high above Fez.

Thousands of narrow alleyways in an ancient medieval city make up what's believed to be the world's largest car-free urban zone.

The other side is actually green.

These traffic lights celebrate the 100 year anniversary of the women's suffrage movement in Lithuania.

Travelers who fall victim to this mermaid's charms are destined to stay in Užupis forever.

One of the world's oldest working clocks is curiously missing the Zodiac sign of Libra.

Legend has it that Napoleon Bonaparte fell in love with this Gothic church.

This vast masterpiece of Moroccan architecture spreads across 20 acres.

It took 40 years to build this Eden-like garden in Marrakech, later restored by Yves Saint-Laurent.

Fortune tellers, snake charmers, poets, and storytellers all gather on this historic square in Morocco.

This hauntingly beautiful cemetery outside a medieval citadel is full of winding paths and ivy-covered graves.

This Ukranian fortress is one of the best-preserved medieval castles in Europe.

This floating sculpture of ice is a poignant reminder of nature's power.

This oddly shaped building is a surprising Soviet-era crematorium.

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

This Czech church doubles as something of a permanent fashion exhibition for a statue of the Infant Jesus.

This exquisite, alienesque piece of Soviet architecture is being threatened by modern shopping malls.

The first mosque in the world to receive electricity.

This cathedral hides a sculpted dog that determines your fate and an unexploded shell from World War II.

The partially submerged ruins of a white marble quarry used in ancient Greece for over 1,200 years.

The only surviving piece of Copenhagen's 16th-century defensive wall.