The remnants of a record-setting industrial bucket system can still be found dotting the Swedish countryside.

This 2,000-year-old stone maze is one of the oldest in the country, but its purpose is still a mystery.

This patch of land is home to Sweden's largest burial mound, allegedly belonging to a mythical king.

The world's biggest version of the popular Swedish souvenir.

One of Antoni Gaudí’s earliest buildings, built between 1886 and 1890 for the industrialist Eusebi Güell.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

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

Construction of Barcelona's iconic (but controversial) church is expected to be 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 real clothing store that inspired a fictional spy organization's front.

Originally meant to hold a statue of King William IV, this support sat empty for years. Today, it hosts a rotating cast of public artwork.

An ornate and disused early 20th-century building has been given new life as a fully operational structure, complete with offices, oyster bar, and a furniture retailer.

Explore nearly 400 years of English middle-class home life.

This luxury shopping lane has been protected by its own tiny police force for over a century.

Claiming to be the oldest hat store in the world, this historic haberdashery had a hand (and a head) in the creation of the Bowler.

A cluttered and astounding collection of antiquities and curiosities.

An unusual round church in London with a Templar past.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

This weird, elephant-shaped rock also hosts two ancient tombs.

This bustling Italian plaza is built on the ruins of an ancient Roman amphitheater.

Windblown rock formations in an ancient Roman quarry.

A brutalist gem towering over the heart of Milan.