A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

These quintessentially English stepping stones were built for Victorian tourists.

This century-old grotesque has a mysterious history and may not actually be a rabbit.

This sculpture commemorates a naturalist and an illustrator whose work was a forerunner to modern field guides.

The highest peak in all of England is plagued by dangerously fickle climate shifts.

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.

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

At night, bats patrol this magnificent 18th-century space in search of book-eating pests.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

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

This charming candle shop has been in business since 1789.

The world's oldest bookshop still in operation.

The sculpture of the deceased cockatoo flops atop its personal plinth.

The Cambridge pub where Francis Crick announced that he and James Watson had discovered the DNA double-helix.

Remnants of a Victorian garden feature sitting in public woodland.

England's most notorious suicide spot.

These stark white cliffs were spat up by the sea and are slowly being retaken by it.

Mary Kelly was last seen here before she was murdered by Jack the Ripper.

The largest of London's subterranean rivers and once a mad, bad center of London life.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

Once one of the largest rooms full of books in the world, this bookstore basement is still a treat for bibliophiles.