The colorful, smiling concrete silos of Vancouver.

The only example of a Paris Métro sign in use at a subway station outside of the French capital. 

A 30-year-old Sycamore tree grown from a seed taken to the moon and back.

Display that gathers the basic elements of the universe in one convenient location.

This quirky piece of naval artillery has been deafening Canadians for over a century.

What happens when a sculptor has to find a way around a 100-year-old copyright.

A swirling spectrum of stained glass dazzles visitors who enter this subway station.

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

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

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

A working steam clock, one of only a few in the world, located in Vancouver's Victorian Gastown.

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

This quarter-mile tunnel under the Bluff in Pittsburgh bends at a 45-degree angle.

The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.

This "life-size" depiction of Mickey Mouse as a half-lobster is both whimsical and a bit creepy, standing guard over the Boston waterfront.

"Try not to knock anything over!"

This American Sycamore was grown from seeds that accompanied the Apollo 14 mission in 1971.

Mural fragments and various sculptures honor the longtime artist.

A simple but powerful tribute to the 20 victims of the 1692 witch trials.

A beacon atop a downtown building provides Bostonians with weather forecasts and baseball news.

This art display in Dedham honors a local fish, and is dedicated to the volunteers who restored the canal.

What may be Boston's finest Art Deco building, located in the city's Financial District.

A centuries-old church stands as a testament to Boston's "father of architecture."

What was once a true peninsula has now been filled in, causing the water to recede and leaving many streetside "waterfronts" and landlocked "islands."