Over 4500 valuable bibles are safely tucked away in this museum in central Oslo.

History, science or architecture fans will love this hidden gem in Oslo.

Once silenced for being off-key, this bell has found a new voice as an interactive public artwork.

A cannonball fired during a war against Sweden is wedged in the wall of this old post office.

Rest stops along this pathway offer some of the best views of the Acropolis of Athens.

Many of the tombs contain victims of yellow fever epidemics.

Red, white, and blue painted steps along with a Union Jack celebrate the outcome of Gibraltar's 1967 referendum.

Single runway interrupted by a busy road that cuts across its middle.

The defensive tower was built centuries ago to warn locals of Berber pirate attacks.

A Spanish town built into the cliffs.

This quaint Spanish village agreed to be painted blue as a marketing stunt but found that they preferred it that way.

Spanning the El Chorro gorge, this pathway used to be one of the most dangerous crossings in the world.

Sample Spanish wines under frescoes in a historic monastery of "barefoot old men."

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

The gardens and chambers of this Moorish citadel conjure memories of the Alhambra.

A man's curious and seriously small handmade objects from around the world.

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

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

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

Step into the past of this Andalusian town through exhibits with traditional tools, local crafts, and cultural artifacts.

This Moorish fortress has guarded Málaga from the slopes of Gibralfaro hill for nearly a thousand years.

This art installation at an abandoned lipstick factory has distinct anti-capitalist vibes.

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

Discover what life is like on Amsterdam’s famous canals.