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.

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

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

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

From lefty Jewish gathering site to hip cultural site in just 80 years.

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

The final resting place of the great navigator, or maybe his brother.

One of few vertical lava tubes in the world accessible by foot.

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

The last living thing to come out of the rubble after 9/11 is now a symbol of hope and resilience.

Blighted Irish field and the ruins of a 19th-century cottage on the edge of urban Manhattan.

A celebration of capitalism in Midtown.

The oldest operating apothecary in the US has treated everyone from Thomas Edison to Mark Twain.

A quiet and contemplative oasis in the middle of New York's bustle and riot.

This one-of-a-kind convent boasts a kaleidoscopic exterior of stars and double-headed eagles.

This striking public art installation is suspended above a public park, designed to gently move in the breeze.