This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

A unique seaside cave where Aleister Crowley faked his own death.

Picturesque intersection of witchcraft and ancient Christianity.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

The world's oldest bookshop still in operation.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

From 135 feet high riders plunge down the world's tallest freestanding body slide at 65 mph.

This seemingly cursed monument is dedicated to one of Canada's great war heroes.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

A 400-square foot model of historic Quebec is the playing field for a state of the art light and sound show.

A massive Montreal stadium that has seen nothing but trouble since its inception.

These powerful, if squat, Canadian waterfalls flow in different directions depending on the time of day.

A contemporary fresco movement illustrates the region's rich history.

City law dictates that this mountaintop cathedral containing the heart of a saint is to remain the tallest building in town.

Louise Bourgeois' 30-foot-tall steel spider sculpture.

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

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

A bizarre house filled with an astounding array of collections.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

The gorgeous murals at this open-air museum form the largest street art collective in Chile.