Walk the jungle tree tops in Costa Rica. Arenal Hanging Bridges, Costa Rica - A three kilometer hike through the Costa Rican rain forest. There are six suspension bridges, with the largest one at just under 100 meters long and 45 meters off the ground.
24 Awe-Inspiring National Parks That Will Make You Want To Grab Your Hiking Boots
The London Eye (Millennium Wheel), a giant Ferris Wheel on the south bank of the river Thames in London England. It is the tallest Ferris Wheel in Europe and the most popular attraction in the United Kingdom.