Moonbows over Kentucky.

A multi-storied adobe complex has been inhabited for more than a thousand years.

A Turkish ghost town abandoned in a population exchange with Greece.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

The celebrated eyesore created by starry-eyed sweethearts.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

Elaborate tile work in this railway station tells the story of Portugal.

A unique seaside cave where Aleister Crowley faked his own death.

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

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

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

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

The world's largest wooden structure.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Old Danish castle immortalized in Shakespeare's Hamlet.

This chimerical bridge/tunnel appears to dead end right into the sea.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

Copenhagen's celebrated theme park and gardens.

The stoutest tree in the world.

This beautifully deceptive waterfall is something far different from what it appears to be.

The winter home of millions of migrating monarch butterflies.