This shell of a historic manor house on the Isle of Wight is said to be the most haunted site on the island.

A beautiful 19th-century mansion slowly crumbled and became a 'ghost house' after World War II.

A grand Yugoslav memorial to the group of partisans who fought and died resisting western Serbia’s Nazi occupation.

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

The interior of this Serbian royal family's mausoleum is covered with exquisite mosaics.

Religious perseverance and cultural coexistence manifest in an architectural gem that multiple wars couldn't topple.

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

A Serbian church lit by chandeliers made of weapons.

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

Legends of treasure and spirits flow from this this fairy tale-like oasis.

Structure built from the skulls of vanquished foes.

This 14th century castle withstood years of battle but is now sliding off the hills into the Danube.

A wellspring of natural Viagra found in Bosnia.

Controversial site of what could be Europe's first pyramid.

The remains of the last Bosnian fortress to fall to the Ottomans are still standing.

A bridge destroyed three times: once as a ruse, then in an actual attack, and finally for the movies.

A former bank seized as a sniper vantage point during the Bosnian War is now a secret graffiti art gallery.

This brutalist monument is inscribed with 9921 names of Yugoslav partisans who perished during WWII.

This historic cemetery was inaccessible for several years due to dozens of land mines.

This cluster of little wooden huts once ground local farmers’ wheat into flour during the days of the Austro-Hungarian Empire.

This top-secret nuclear bunker hidden in a Bosnian mountain has been converted to a modern art exhibition space.

Climb atop one of the world's longest and heaviest trains for an unbelievable journey across the Sahara Desert.

Monks turned this mountain into a temple by digging grottoes, tunnels, and a huge pagoda-like hall.

Surreal riveted sea forts once protected the Kent shores from German attack.