Bridge that died in war and was resurected.

A Red Cross memorial museum at the site of the Niš concentration camp that operated for four eventful years during World War II.

For over 40 years, this quaint little house has teetered on a rock in the middle of a river.

A sinuous path among steep cliffs creates a stunning sight in southwestern Serbia.

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

There is a mouldering Jewish cemetery hidden away in the capital of Moldova.

This ominous Albanian fortress houses tanks and downed planes as a reminder of their victories over Western imperialism.

What happens when you cross a mayor and a painter?

An Albanian monument to the Communism that nearly crushed the country is now a crumbling wreck.

A medieval bridge stretches over a sulfur-rich river that leads to year-round natural hot springs.

A naturally beautiful, seemingly bottomless deep blue spring.

This heart-shaped island looks substantially less lovely after a recent bulldozing project.

An ethereal glowing blue ocean cave in Croatia.

A musical instrument played by the sea.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

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

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

A submerged village appears when dam levels drop.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

An eccentric artist's abode in this small Italian town has been transformed into a surreal temple of mosaic madness.

The highest waterfall in Italy is only "turned on" five times a year.

142 ceramic steps become a mosaic once a year.