The Grand Canyon Skywalk.It is a steep-sided canyon carved by the Colorado River in the United States in the state of Arizona. It is contained within and managed by Grand Canyon National Park, the Hualapai Tribal Nation, and the Havasupai Tribe.
Fingal’s Cave, Inner Hebrides, Scotland. "Fingal's Cave is a sea cave on the uninhabited island of Staffa, in the Inner Hebrides of Scotland, part of a National Nature Reserve owned by the National Trust for Scotland" via Wikipedia.
Greece - View of the old port of Fira Santorini island. Facts about Greece: Area: sq km. Southernmost part of Balkan Peninsula in southeast Europe and 150 inhabited islands in the Ionian, Aegean and Mediterranean Seas. The islands constitute o