This large round boulder is said to emit spiritual power, but it may just be magnets.

The ominously named cave is home to some remarkable ancient art.

This was once the center of the Birdman cult, and is now a World Heritage Site.

A fantastical group of cliffside stairways, bridges, and twisting paths carved out of stone provide a surreal coastal hike.

This Japanese-inspired labyrinth of hot springs is hidden in a Chilean forest.

The largest stone moai on Rapa Nui.

This odd Chilean waterfall-cano hotel must be entered via a rope bridge.

A beautiful young girl said to have been buried alive in her coffin…

A gateway to a mysterious network of underground tunnels.

A bright little alley in La Boca is a part of tango history.

A hidden gem in the middle of the city's infamous Jewelry Quarter.

An intricate network of underground tombs carved into volcanic rock.

An ancient relic in Edinburgh that is around 4,000 years old.

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

Hidden on the urban banks of a Manchester river are a series of abandoned waterside industrial sites.

This bronze sculpture represents the helpless, hapless, and the damned who have passed through Piccadilly station since it opened in 1842

This steep cable railway has been hoisting passengers in the heart of Québec City for over a century.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

The only example of a Paris Métro sign in use at a subway station outside of the French capital. 

Two thirds of this Montreal neon icon has survived to flash another day.

A swirling spectrum of stained glass dazzles visitors who enter this subway station.

Small ship votives hang from the vaulted ceiling of this port-side church with a Latin inscription on the wall.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

Montreal's giant farmer's market is a foodie's best friend, especially in the winter months.