This picturesque monastery at the base of a cliff is a peaceful oasis open to all visitors.

A monument on the pavement marks the spot where two cultures that shaped Sarajevo come together.

This enormous abstract sculpture is part jungle gym, part elaborate noise-making machine.

A number of craters left by fatal mortar strikes have been filled with red resin to remember those lost during the Siege of Sarajevo.

Inat Kuća, or "House of Spite," is more than just an oddly named restaurant.

Oriental bazaar in the heart of Sarajevo.

The place where World War I began.

The first mosque in the world to receive electricity.

This historic timepiece is thought to be the only public clock in the world that keeps lunar time.

A ruined castle stands atop a hill surrounded by dragon lore.

This fairy tale forest hides scenes from some of the more obscure and bizarre Western nursery stories.

Go inside a revolutionary, cage-less zoo where 35 species live and some of them roam free alongside their human visitors.

The world's largest bicycle shelter can hold more than 12,500 two-wheelers.

The hidden ruins of an old hydroelectric plant reclaimed by nature.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

One of the most spectacular bridges in Spain spans a narrow chasm that divides the city of Ronda.

An eccentric collection of antique items shares space with a prop-quality witchcraft museum.

Rare karst landscape eroded from a flat seabed.

A long-buried ancient ruin unearthed right in the middle of the city.

The sunlight passing through the opening of this huge cave system creates a magical effect.

A curious carving hides on a marble column in the Mosque-Cathedral of Córdoba.

A New York–based physician returned home to Spain to build his own elaborate monument to Christopher Columbus.

A 16th-century Andalusian palace.

This former charity hospital for elderly clergy houses some of Seville’s most treasured paintings.