A musical instrument played by the sea.

This truly palatial work of Communist-era architecture now sits crumbling on a Croatian beach.

These pools have been abandoned for over 20 years.

A once-luxurious, now abandoned hotel in the Italian Alps.

A formerly opulent Italian village is now a crumbling ghost town that no one really knows what to do with.

This massive subterranean fissure is known as the "underground Grand Canyon."

Destroyed Serbian army headquarters sits half crumbled in a largely revitalized Belgrade.

A pair of connected skyscrapers form this symbolic gateway.

This World War I fortress is the perfect place to catch a Montenegrin sunset.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

Exquisite examples prehistoric bas-relief carvings.

Locals say the stone that marks the spot where the gallows once stood can lead you astray.

Heralded as one of the prettiest castles in all of Czechia.

Be(w)ar(e) the moat around this historic Czech castle.

Steadily reminding Czechia of its past.

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

Macabre astrological automaton clock dating to the late 1400s.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

This oceanside Reykjavik spot is speckled with recycled sculptures and large stones.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

Iceland's "Smoky Valley" is a beautiful river that is shrouded in a constant cover of steam clouds.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.