This historic franken-chapel is the oldest wooden church in the world, at least part of it.

150 or so scrounged-up lamps, chandeliers, and lanterns light up this alley in central Athens.

The Cycladic architecture makes this Athens neighborhood feel like an island paradise hidden in the shadow of the Acropolis.

The railway carts travelers to central Athens's highest peak, which offers stunning vistas of the city.

A massive 1830s industrial site once known as Czechia's "Iron Heart" has been transformed into a playground of science, technology, and art.

The deepest sinkhole in Central Europe comes with a grisly tale and an unusual nickname: “The Stepmother Abyss.”

While the U.S. and Soviet Union were engaged in a space race, Poland built a UFO on the ground.

A peculiar family mausoleum built by a German nobleman captivated by the occult.

This Nazi ruin was the site where Hitler was almost blown up by a suitcase bomb.

The Frank Zappa fan club erected this monument to their prog-rock hero to mark a new era of post-Soviet Lithuania.

The widest waterfall in Europe is a natural wonder and one of the only places where fish are caught in the air.

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

The oldest housing complex in Riga is a mini timeline of architectural trends.

A unique museum dedicated to the famed Soviet director and other cinema greats.

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

Estonia's largest creative city is a vibrant bohemian hub located within a former industrial complex.

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

"There's nothing there," and other lies the KGB told us.

This dizzying tower was built to better broadcast the 1980 Moscow Olympics.