This historic Canadian jail was once the longest operating prison in the country and is now open for people to incarcerate themselves.

What was once the largest mine in North America has left behind a hollow hill filled with bright blue waters.

Stunning views over Ontario's old-growth pine forests.

You don't have to visit the deep blue sea to see these majestic creatures swimming wild and free.

The world's largest and most outstanding marl lake regularly changes color.

It's 2 billion years old!

Profile of a sleeping person 4km long in 250m high cliffs.

The world’s first museum dedicated to exploring human rights unleashed a wave of controversy.

The ruined remains of an early hydroelectric dam.

Terraced flowerbeds and rock sculptures in the midst of the Minnesota wilderness.

Only intact Ichthyosaur skeleton in the United States.