The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

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

The library houses an incredible collection of some of the world's most impressive books and manuscripts.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

One of the world's largest collections of pathological specimens.

A collection of comics, graphic novels, animation and caricatures devoted to exploring this often overlooked art form.

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

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the first ‘Harry Potter’ film.

This brass doorknob is a nod to a local literary figure.

Art historians have debated the identity of this medieval stone rider since the 19th century.

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

This architecturally eclectic early-20th century mosque was built as a place of worship for the Islamic followers of a Jewish messiah.

The scorched Lisbon church that survived two earthquakes and a massive fire.

Sip cherry liqueur at a bar dating back to 1840.

Eat the ultimate iteration of Portugal's most beloved pastry.

An exquisite collection of fairytale conveyances that puts most car museums to shame.

Hidden beneath a beautiful overlook you’ll find the history of the city depicted in comic strip format next to a pay toilet.

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

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

The oldest operating pharmacy in the world features 800-year-old recipes.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

This cone-shaped bomb shelter, modeled on German design, is a rare WWII relic that never saw use but still looms over the harbor.