A small oasis not far from downtown Moab.

An Ancestral Puebloan ruin that appears to burst into flames in the sunlight.

One of the world’s largest collections of petroglyphs records 2,000 years of human activity.

A Mars simulation in the southern Utah desert.

A tunnel with windows, so you don't miss out on the impressive views.

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

305 homemade stone stairs wind their way up the Hamilton escarpment.

Soaring over the Niagara Whirlpool since 1916.

Legend says that this short Canadian tunnel still holds the dying screams of a girl who burned alive.

Smallest house in Toronto sits on a lot meant to be just wide enough for cars to drive through.

An abandoned Victorian-era amusement park is rusting away amidst luxury houses.

Willy Wonka would love this weird half-a-home.

These strikingly barren, rolling red hills were caused by bad farming practices.

This Toronto garden collects stares and tchotchkes in equal measure.

With well over 130 falls and cascades to brag about, Hamilton, Ontario has earned its stripes as the waterfall capital of the world.

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

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

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

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

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.

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

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

A house carved into a rock in the 1940s.