Place with alleged mystical powers in Old Orthodox Church in Sarajevo.

The place where World War I began.

A war-torn Olympic relic is being overtaken by graffiti and nature.

Also known as the Blue Church, the building was consecrated to the daughter of Andrew II.

The London pub overlooks where the Mayflower was moored before setting sail for the New World.

A striking public sculpture representing the period of martial law in Communist Poland.

The silly symbol for an underground protest group is now scattered around the city.

A 90-ton, gravity-defiant steam locomotive shoots for the skies in this bizarrely beautiful public artwork.

A collection of old neon signs from all over Poland line a secluded courtyard.

The vast chamber inside this abandoned cooling tower looks like something out of a sci-fi dystopia.

A whimsical bridge uses saxophones to pay tribute to two great men and the European Union.

A scattered trail of street art adds a pop of color to the city's stark structures.

Remnants of cells from the most notorious London prison may lie in the basement of a rare Victorian Gin Palace.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

This abandoned mining village was predicted to resist decay longer than any other modern human settlement.

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

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

Once a train station along the Great Eastern Railway this vibrant coffee shop and bar is where members of London’s creative class mingle.

This mysterious and once-grand memorial still embodies a remarkable architectural vision.

A mysterious structure left behind on the Polish mountainside, sometimes called "Hitler's Stonehenge".

These mechanical goats first battled it out in the year 1551, all because of an overcooked deer.

Naturally formed rock city in Poland.

A fairytale Gothic castle steeped in Nazi treasure conspiracy theories.