The highest point in Maine is a grand gift to the state citizens that also happens to be one end of the Appalachian Trail.

True to its name, this bouncy walkway may be the world’s smallest suspension bridge.

From 135 feet high riders plunge down the world's tallest freestanding body slide at 65 mph.

Deep below the dry landscape of Bahia, a cave with intense blue water to float in.

An abandoned stretch of elevated road in the middle of the Brazilian jungle.

Part of one of the largest flooded cavities on the planet, and littered with prehistoric animal bones.

These termites have an large and deadly abode—impressive by day, dazzling by night.

You feel like you're in a forest, but you're actually walking amidst the branches and trunks of a single giant tree.

After millennia of erosion by sand and churning water this Brazilian valley now looks like a lunar fantasy.