An Irish Memorial commemorating those who perished due to potato blight.

A tour de force of a fountain, memorializing a man who loved fountains more than anything else.

Yo, Adrian!

This elaborate towering structure was once famed for its revolutionary height.

Century-old shop, specializing in Occult products.

Fiji mermaids, mummified remains, and recreated cryptids are among the morbid oddities at this Maryland museum.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

These lush botanical gardens employ the most purrfect pest control force.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

An overlooked memorial honoring the local Washington residents who died in World War I.

While most wind tunnels test scale models, the "Cave of Winds" was large enough for actual airplanes.

Look closely and you’ll notice that the color changes a third of the way up the tower.

Washington's iconic carousel has a nice piece of Civil Rights history.

The remains of Martha, the last known passenger pigeon, serve as a tool to educate about conservation.

There's a crumbling old mansion inside the Smithsonian National Zoo.

Home to items never before seen by the public.

The site of the climactic scene from the classic horror film is now a historic landmark.

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

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

Every year, the colorful murals of Montreal get a complete makeover.

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

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

One of Canada's oldest museums, the beautiful Redpath has been serving up Natural History and Ethnography since 1882.

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