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

A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

Niagara Falls holds a special place in Nikola Tesla's history, so they put a statue on it.

Few other hotels can rival the grandeur of the Castle in the Rockies.

A memorial to the nearly 10,000 American soldiers laid to rest on the beaches of Normandy during WWII.

A daring D-Day assault by U.S. Army Rangers is commemorated atop the high cliffs of this strategic point.

The ghost town where the villagers refuse to leave.

A safari-themed castle in the South African bush with the largest maze in the southern hemisphere.

Caves that can't seem to quit producing the remains of prehistoric humans.

This striking, two-toned confluence of rivers is visible from space.

Railways may have forged this quintet of lovely tunnels, but now they are open to hikers.

The mountaintop wind turbine boasts a viewing deck — and a fair share of controversy.

A pixel art killer whale is frozen mid-leap in this Vancouver square.

This mundane shopping plaza is named after a gruesome piece of flotsam.

A floating McDonald's built for Expo '86 is now a derelict relic on Burrard Inlet.

While these wooden totems bear a striking resemblance to First Nations artwork of British Columbia, their actual origins lay on the opposite side of the Pacific Ocean.

This Italianate house was the childhood home of the prominent Canadian painter, Emily Carr.

This historic Victorian hotel has a scandalous history of affairs and murder.

One of Ireland's most infamous prisons for rebels including men, women and children.

A particularly disconcerting tribute to Irish martyrs.

This permanent collection of preserved bodies taken from Irish bogs is one of the leading authorities on such morbid mummies.

Dublin's "Dead Zoo" serves as a window to Victorian museum design.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

The mummified heart of a saint lives on in this church—after a brief hiatus when it was stolen.