Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

The world's first underground farm is in a World War II bomb shelter beneath the streets of London.

An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

This series of Scottish caves has no clear purpose other than baffling historians.

Spend the night in this formerly abandoned traditional Scottish village.

Amazing and mysterious Neolithic settlement on Scotland's Orkney Islands.

Northern Ireland's Brobdingnagian stepping stones.

The atmospheric road was never meant to be so creepy.

Ancient man-made caves underneath small town Belgium.

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

This non-profit theatre in the heart of Brussels is dedicated to hosting independent films.

In the shadow of a former battleground, the resting place for nearly 2,000 soldiers who died in World War I.

An early 20th-century sanatorium, long abandoned and now being reclaimed by nature.

The legendary giant's severed hand sits on Antwerp's popular shopping street.

A man throwing a giant severed hand towers over Antwerp’s main square.

Drink among marionettes at this pub inside a historic puppet theater.

This statue dedicated to the story of a Flemish boy and his dog was relatively obscure in Belgium, but a cult sensation in Japan.

This recently restored crypt was once plagued by liquefying coffins and exploding caskets.

The site where one of the most famous poems of World War I was composed is preserved to honor the legacy of the work.

The bronzed skull of a beheaded traitor was affixed to the city gate in the 17th century.

The "stairway to heaven" lookout tower was built to resist weather, arson, and the laws of physics.

In an area where the remnants of WWI are discovered on a regular basis this preserved frontline trench may be the most amazing.

One of the deepest indoor swimming pools in the world.

Sculpture designed by Turkish artist and professor Mehmet Ali Uysal.