A monument to the 17,000 Chinese who worked and died to build Canada's Pacific Railway.

The ruins of an 800-year-old monastery boasts the tallest round tower in Ireland.

A striking 12th-century-style castle built on the edge of a cliff.

The remains of an attempt to carve a thriving metropolis from the forest, and once home to the first revolving door in North America.

A shrine built to combat the bad karma of a commercial venture.

The plague quarantine island home to the alleged "Vampire of Venice."

A peculiar clock commemorates a historic victory won by ringing the noonday bell an hour early.

Relics of Australia's convict past, and a modern scene of unimaginable horror.

Granite rocks that concentrate waves into powerful jets.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

Lady Liberty's original designer installed a little clone in this French fountain.

Site of one of World War I's most horrific scenes.

Folklore and history carved into Brittany's coast.

This bridge was constructed from the rubble of the infamous Bastille.

The world's largest reflecting pool is just two centimeters deep.

An underground city of ancient quarry tunnels hid thousands of Allied soldiers in WWI.

This crumbling, graffiti-covered mansion sits tantalizingly within reach of the proletariat who frequent a public park.

A popular shrine where the Blessed Virgin allegedly appeared in 1830, displaying a holy armchair and two incorruptible remains of Lady Saints.

This modern French ossuary contains the jumbled bones of 130,000 WWI soldiers.

This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

This strange bovine gargoyle is said to have been put in as a passive aggressive form of revenge.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.