Museum celebrating the ocean, with the largest wunderkammer dedicated to sea exploration.

Every year, the town of Menton, France, turns lemons and oranges into giant sculptures depicting windmills, dragons, and more.

A beautiful discovery site of prehistoric burials.

Jesus' footprints and the first catacombs in the world.

Stalactites and stalagmites in a beautifully lit cave.

Once one of the largest sites of silver deposits in Italy.

Made famous by 'Star Wars,' these troglodyte homes face an uncertain future.

Deliberately hidden for centuries, the magnificent Saadian Tombs were eventually uncovered in 1917.

The world's largest wooden structure.

A 16th-century Andalusian palace.

The final resting place of the great navigator, or maybe his brother.

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

Touching this little fossil embedded in the wall of a grand mosque-cathedral may make your wishes come true.

Spanish architects used seized Muslim gravestones to rebuild parts of the fortress.

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

Ring the bell to enter a bar that looks equal parts museum and old curiosity shop.

A micronation on an islet along the coast of a Portuguese island.

Crafted from ocean litter, this sculpture highlights the ills of overconsumption.

A shrine-like museum entirely dedicated to soccer superstar Cristiano Ronaldo.

A lush oasis full of vibrant plants and striking geometric displays.

Men in rubber-soled boots serve as your "brakes" on this toboggan ride Hemingway described as "exhilarating."

This glass skywalk offers vertiginous views down the volcanic cliffs to the beach below.

These small, triangular, colorful houses are a staple of Madeira Island.

Portugal’s highest lighthouse has one of the most impressive focal planes in the world.