More exciting than roller coaster rides at amusement parks, some unique destinations provide real adventure, but are safe enough for even the most nervous senior.

Grand Canyon Skywalk: One of the world's top natural wonders features the horseshoe-shaped Skywalk. It’s a clear glass-bottom platform that extends 70 feet out over the West Rim. You actually walk out over the Canyon on a glass sidewalk.

It offers unrestricted breathtaking scenes of the multicolored sheer cliffs and rock formations that stretch more than 20 miles in all directions, as well as thrilling views nearly a mile directly below to the Colorado River. The Hualapai Native-American tribe, which has lived in the Arizona area for centuries, opened the Skywalk in 2008. It’s described as "walk the path of the eagle".

Visitor numbers are limited on this busy tourist site, so it's best to arrive very early in the morning or at sunset. There are restaurants and other facilities adjacent to the Skywalk. Tickets are $29.95 adults and $22.46 for kids 3 to 11. grandcanyonskywalk.com