This unusual elevator doesn’t stop or slow down.

This unattributed sculpture in Amsterdam is hiding in plain sight.

This cheese shop also houses a museum devoted to Dutch dairy.

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.

Cat art as far as the eye can see.

This lesser-visited World Heritage site in Athens boasts an impressive ensemble of medieval gold mosaics.

A crushed gate and giant bronze head serve as a reminder of Greece's fight for freedom.

A man's head is enshrined beneath a statue near the first building constructed for the modern Olympic Games.

Temple complex that once housed the famous statue of Nike.

The oldest standing Byzantine church in Athens is tucked within a monastery in the middle of an upscale shopping district.

This gem is often wrongly overshadowed by the larger, newer Metropolis church in Athens.

Cave on extinct volcano, once home to famous mathematician Pythagoras.

Poseidon? No one seems to know.

The ruined doorway is a portal to the building's turbulent and torturous past.

This small 16th-century church in Athens is almost entirely surrounded by a modern building.

A quirky bookstore hidden beneath a sea of whitewashed Greek villas.

The hallucinogenic center of the ancient world.

The most visited, and possibly most controversial, museum in Germany.

The fairy tale castle of the "fairy-tale king."

A jumble of concrete on the corner of one of London’s terraced buildings is actually a work of art.

At 929 pounds and 26 feet tall, this stainless steel fork can only be used by the likes of King Kong.

Visit a museum dedicated to the “the king of cheeses.”

An image of the legendary saint stands in the shadow of a cathedral she liberated.

The oldest continuously operating mint in the world that has been making coins since the 9th-century.