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

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.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

This museum housed in a former brothel explores the past and present of sex work in Amsterdam.

The history and future of cannabis.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

This 22-floor tower's Skydeck offers panoramic views of Amsterdam.

Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

A statue in the center of Dublin dedicated to one of their favorite sons of rock & roll.

The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

A never-finished memorial to the heroes of the Napoleonic War has become "Scotland's Folly."

The tomb of one of Scotland's bloody historic villains is a magnet for bumbling desecrators.

This extinct volcano rises above Edinburgh and is special for its panoramic views over the city.

The most loyal of little dogs, or a Victorian era publicity stunt?

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

This 17th-century street hidden beneath Edinburgh was once a breeding ground for the black death.

A relic from ancient Egypt that is purported to have a curse associated with it

Metal horses galloping through a London fountain provide a link to the city's past.

A sculpture of a famous ape who was once a beloved household name in London.

At almost 1,000 years old, this is the oldest known door in all of Britain.

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.