One of the oldest and most significant collections of Ancient Egyptian archeology outside of Egypt.

A kaleidoscopic warehouse-maze of handmade neon signs.

Catacombs turned marketplace.

A little slice of Japan and its aesthetics in London's Holland Park.

Also known as the Square Colosseum, this building is a prime example of fascist-era rationalist architecture.

One of the most well-preserved castles in Italy also contains a rare medieval example of a port fortification.

A gorgeous example of 13th-century Gothic architecture.

Pilgrimage site for star-crossed lovers.

Incredible labyrinth of man made caves.

Visit the ancient, mysterious Roman catacombs ... in the Netherlands.

A beautifully eclectic mix of architectural styles.

It appears as if a man is standing behind this giant airport clock, painting the hands in real time.

While most bridges allow roads to pass over water, this one allows water to pass over a road.

The tallest waterfall in the Netherlands is a lovely, stepped feature that is only 50 feet tall.

The largest airborne operation in history was launched to capture this bridge.

At the base of this tower, a plaque marks the original center point of the Netherlands.

A historic observatory now an astronomy museum beautifully situated at the moat of the Middle Age city centre.

'The Letters of Utrecht' lays out a ribbon of poetry one letter at a time, with no final verse in sight.

This still-celebrated home was a radical architectural experiment in 3D De Stijl.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

One Portuguese poet described this cape, the westernmost point in mainland Europe, as "where the land ends and the sea begins."

The railway carts travelers to central Athens's highest peak, which offers stunning vistas of the city.