This colorful creation wasn't always a welcome part of Toronto's Moccasin Trail Park.

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

A well-preserved network of cavernous tunnels have spent silent centuries removing Toronto's waste.

This Toronto garden collects stares and tchotchkes in equal measure.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

A botanically themed auditorium blooms within the world’s last operating double-decker theater.

A book collector's dream, this Toronto bookstore has the world's first "Biblio-Mat," a random book vending machine.

This elaborately-carved white marble fountain was built to stand outside the Detroit Opera House.

Once the tallest building in Detroit, this Gothic church houses some of the oldest stained-glass windows in the country.

This historic Jewish cemetery sits right in the heart of a Detroit car factory.

Detroit’s Eastern Market has been transformed into an outdoor museum with colorful murals that address social issues and symbolize the city.

This railway-turned-greenway provides a pedestrian link in downtown Detroit and celebrates urban artwork.

The pieces in this sculpture garden are made from demolished buildings that were once landmarks of Motor City.

38-story baroque tower reflecting Detroit's rise, fall, and possible rise again.

Dilapidated Mayan-themed ballroom was one of Detroit's most popular venues through the 40s.

The grandiose interior of this bar speaks to its past as home to famous jewelers and railway offices.

Collective made up of artists, musicians, and activists.

An ornate Detroit church, left empty and ravaged by time.

The world's oldest operating jazz club has been in operation since May 1934.

The world’s largest Masonic temple was saved by the White Stripes.

This empty Detroit high school was too expensive to maintain or destroy.

Enormous small-business mecca in the Midwest, serving dozens of artists.

Opulent downtown movie theater now houses cars as an indoor parking garage.

To truly appreciate Detroit's landmark skyscraper, you have to step inside.