This historic, palatial theater is now one of the world’s most beautiful bookstores.

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.

This African beach is home to thousands of rare mainland penguins that are known for their annoying voice.

The Slovenian architect designed many landmarks in the capital city, including his own dream house.

A whimsical bridge adorned with decorative dragons.

This one-time health resort was used by aristocrats around the world.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

These fantastically named natural pools look like something out of a Scottish myth.

A 250-year-old timepiece-automaton adorned with golden mechanical birds, which still sing to this day.

This chapel on a cliff is renowned for its healing powers and was founded on the site of a supposed divine intervention.

Rusting, graffiti-covered tanks litter the beach of this island, once used by the U.S. military for target practice.

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

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

A tribute to the Polish insurgents who fought in the failed attempt to end their city's Nazi occupation.

The former Nazi Germany concentration camp stands as a museum to remember this dark chapter in European history.

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

Preserved Inca city and site of the last Inca stronghold against the Spanish conquistadors.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

Across the Pacific in a raft, a museum dedicated to Thor Heyerdahl's now legendary expedition.

Home to three historic ships from the age of Vikings.

The burning of this 12th-century church kicked off a campaign of Norwegian Black Metal terror.