Why have you never heard of the second most popular tourist site in New York?

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

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

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

This 1967 experiment in modular architecture was designed to be a new model for urban living.

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

Its columns were all carved from the same white oak tree.

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

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

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

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

The entire length of the border is marked by a 20-foot-wide slash through the trees.

A castle built for love, and abandoned due to heartbreak.

This local landmark is home to art galleries and the area's only community darkroom.

The most confusing clock in New York.

Rummage through this sunken ship, but leave your scuba gear at home.

A bit of retro transportation flair preserved in the world's largest department store.

Fake subway tiles were installed to cover a design that resembled the Confederate flag—it's unclear if the resemblance was intentional.

The fanciest public restroom in New York City boasts fresh flowers, art, and a classical music soundtrack.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

Beautiful mosaics cover the first stations opened on New York City's newest subway line.

A little lighthouse in New York City, surrounded by mysterious stories of insanity-driven construction.