One of the two original gateways into the Kasbah, this gateway is a nesting site for storks.

This vast masterpiece of Moroccan architecture spreads across 20 acres.

Deliberately hidden for centuries, the magnificent Saadian Tombs were eventually uncovered in 1917.

The largest madrasa in Morocco once housed more than 900 students within its exquisite walls.

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

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

This iconic cinema is home to Tangier's Cinémathèque and a symbol of the city's vibrant film scene.

An early 20th-century school building whose clock tower and carved symbols quietly tell the story of the trades once taught inside.

Prior to modern plumbing, some toilets were in tall towers perched over rivers.

These 18th-century paintings of Warsaw were used to reconstruct the city after World War II.

This bombed church was given a new life as a contemporary art gallery.

A striking church with a Tolkien-inspired nickname.

A relic of Poland's shipbuilding past, reborn as a sky-high lookout.

This wooden mosque is one of the few remnants of medieval Poland's Muslim Tatar community in this deeply Catholic country.

Several 12th-century ruins can be found inside this historical market.

The rusting hulk of a Soviet warship sits on a Polish beach.

This dazzling wooden church was constructed as part of an elaborate peace project after the Thirty Years' War.

This lakeside bunker complex in Mamerki, Poland, housed the Supreme Military Command of Nazi Germany during World War II.

The relics are stored in a silver reliquary, where they can be seen through glass.

An artificial date palm stands as a memorial to Warsaw's Jewish community.

This ex-prison dates back to the Middle Ages.

An extensive network of secret tunnels was created for the Nazi project "Riese."

The majority of the highest mountain in Poland is actually located in a different country.

This museum in the tower of the oldest church in Gdańsk, is home to centuries-old time-keeping devices and the world's first pulsar clock.