Train tunnel running underneath Quebec City.

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

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

A historic Montreal market that was the city's agricultural hub for over century.

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

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

Canada's largest graveyard boasts a lot of noteworthy artifacts as well as its own computerized mapping service.

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

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

The largest known Ancient Egyptian obelisk.

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

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

This small chapel is built of human bones and decorated with a golden skeleton.

One of the largest underground systems runs under Canada's largest urban center.

A collection of more than 12,000 shoes, displayed in a building shaped like a shoebox.

This massive, ancient stone was disassembled and then put back together again.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

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

The oldest landmark of Toronto is a testament to shifting sands.

These mysterious ancient stone spheres were created by a civilization lost to time and are now mostly lawn ornaments.

Ancient catacombs form the foundation for this Rococo orgy of a church.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

Elaborate tile work in this railway station tells the story of Portugal.