A fortified palace in the shape of a ship on the Thiou river.

Lyon's "Wall of the Silk Weavers" is one of the largest murals in Europe.

The world's largest second-hand graces a clock surrounded by constantly changing flower beds. 

The world's largest reflecting pool is just two centimeters deep.

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

North Africa's first museum of its kind preserves the culture of Moroccan women and their artistic achievements. 

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.

The oldest monument in Marrakesh and the city's only surviving example of Almoravid architecture.

This restored 17th century synagogue is one of the few remaining structures in Morocco’s ruined Jewish quarters.

The designated Jewish quarter in Fez dates back to the 15th century.

One of the few places to grab a beer in Fez is a former British consulate.

The courtyard of this small Marinid madrasa is a dazzling example of intricate Islamic architecture.

The oldest known university in the world is in Fez, Morocco.

Traditional 11th-century outdoor tannery.

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.

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

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

One of Madrid's oldest trees, with a long and colorful history, resides in El Retiro Park.

A lush indoor jungle fills this bustling Madrid transportation hub.

The only urban monument in the world designed by the great surrealist painter Salvador Dalí.