This impressive working clock made of 16,000 plants changes its flowers twice a year.

A tunnel that brings more than a century of history to life from the deepest parts of the Niagara Gorge.

This historic library honors the legacy of the British Empire's first children's librarian.

One of Canada's most incredible rare book collections holds hundreds of thousands of gorgeous tomes that the general public can touch.

Canada's largest dinosaur skeleton was hidden away in storage for more than 40 years.

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

A touching tribute to the "Wonkey Donkey."

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

A miniature representation of Canadian cities and landmarks in incredible—and sometimes hilarious—detail.

The Victorian-era greenhouse is stuffed with tropical plants, and open 365 days a year.

One of the largest underground systems runs under Canada's largest urban center.

This whimsical fountain pays tribute to Toronto's four-legged friends.

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

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

An abandoned 1970s theme park that has been turned into a space for waterfront walking.

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

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

The oldest landmark of Toronto is a testament to shifting sands.

A Canadian POW for German soldiers during WWII where prisoners hatched an elaborate escape plan.

A rare venue to buy specialty maps.

These prehistoric replicas were based on actual skeletal remains.

The mastermind behind this palatial hotel perished on the Titanic weeks before its grand opening.

This inexpensive lodging house was once a prison notorious for its inhumane practices.

Louise Bourgeois' 30-foot-tall steel spider sculpture.