Narrowest house in Boston.

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

The often-overlooked ruins of one of the first buildings designed by famous landscape architect Frederick Olmsted.

Radical Bookstore and Community Space.

One of the now-less-hidden floral gems of the "Emerald Necklace."

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

19th-century operating theatre in which the use of ether was first demonstrated - plus, a skeleton and a mummy!

The Boston square dedicated to the dark poet who was born nearby.

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

This unusual structure may be on its way to becoming a cultural landmark in Toronto.

Montreal's colorful subway station shows its support of the local LGBT+ community.

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

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

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

A Montreal deli that was so beloved that it was allowed to circumvent their laws of language.

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

The Incredible Hulk, Yoda, Mulder and Scully, and many many others watch over the mean streets of Toronto.

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

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

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

Soaring over the Niagara Whirlpool since 1916.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

With well over 130 falls and cascades to brag about, Hamilton, Ontario has earned its stripes as the waterfall capital of the world.

Lost subway station nestled beneath Toronto's busy commuter line.