A Latvian rescuer who saved countless lives during World War II.

Over time, this castle grew to encompass the entire island.

Bordered by forest on three sides and the ocean on the other, the Great Dune of Pilat is the highest sand dune in Europe.

This magnificent Art Deco church is a reflection of Lithuania’s turbulent history.

What almost started out as a spite house became an eccentric's found object masterpiece.

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

Single runway interrupted by a busy road that cuts across its middle.

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

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

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

The 700-year-old fortress was the site of Count Orlok's castle in "Nosferatu."

An underground city of salt.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

Inside this Krakow church, an explosion of psychedelic color.

This Polish cave has housed a dragon, a brothel, and an enduring legend.

This abandoned beacon is moving closer and closer to the sea.

This impressively complicated radioastronomy research center was once a tool of Soviet spies.

A top secret Cold War bunker hidden beneath a Latvian spa facility is now open for tours.

A black cat protests the City Guild in Riga's Old Town.

Spend the night in 1920s Latvia in this historic recreation and movie set.

A railway bridge leading nowhere stands lonely in the middle of a meadow.

Flamboyant architecture from the turn of 20th century.

It houses the remains of a 17th-century version of the Titanic.

An abstract monument to a symphonic composer.