This natural sea cave hides a small wonderland of natural turquoise beauty.

An ancient Viking village in North America that predates Columbus by 500 years.

This 1967 experiment in modular architecture was designed to be a new model for urban living.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

The statue of the famous elephant who was the original source of the word "jumbo".

The world’s oldest baseball field had to fight to earn its record.

The artwork commemorates the many ways 20th-century people perished while on the clock.

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

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

This massive, ancient stone was disassembled and then put back together again.

One of the foremost Sherlock Holmes collections is hidden away at a Toronto library.

A unique collection of Science Fiction, Fantasy, and everything in-between.

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

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

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

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.

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

The national park was once a plantation estate.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

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

This unusual structure may be on its way to becoming a cultural landmark in Toronto.

This abandoned Poconos resort is haunted by a history of kitschy romance and a violent fugitive.

This artful dam holds back a crater-made reservoir that can be seen from space.