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

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

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.

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

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

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

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

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 largest stone circle in the world has ended up bringing up more questions than it has answered.

Besieged by war, this castle ruin has crumbled into a peaceful picnic spot.

A statue marks the exact spot where The Boy Who Never Grows Up made his first literary appearance.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

Eighty million natural history specimens call this gargantuan museum home.

A fantastic castle rumored to be the birthplace of King Arthur.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

Famously misunderstood wonder of the ancient world

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

A close look reveals that the Scottish monument is just slightly off-kilter.

This observatory within Europe's first dark sky park offers stunning views of the night sky.

A Scottish manor with a history of mysterious fires, magic, and eccentric tales

Britain's only herd of free-ranging reindeer.

A scattered trail of street art adds a pop of color to the city's stark structures.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.