Travel from the peaks of the tallest mountains to the depths of the lowest valleys to discover what each layer contains. Learn how people live in various enviro

Travel from the tops of skyscrapers to the depths of the subway system of a bustling city! Find out how people make use of each layer along the way.

Teeter on the edge of outer space with the Stickmen. Then fly down, down, down to atmospheric layers that wrap around Earth. Follow the Stickmen to view the gal

Splash with the Stickmen at the sea's surface, and then dive down through the darkening zones and into the abyss. But don't stop there! Follow the Stickmen to s

Travel from the peaks of the tallest mountains to the depths of the lowest valleys to discover what each layer contains. Learn how people live in various enviro