View from second deck of fire watchtower on summit of Apache Maid Mountain, Coconino National Forest, Arizona, United States of America

Visitors to the new 412-meter high observation deck Skydeck, Willis Tower, formerly named Sears Tower, Chicago, Illinois, United States of America, USA

Panoramic Chamonix Terrace on the Piton Nord, Aiguille du Midi, Chamonix, Mont Blanc Massif, Alps, France, Europe

Panoramic terrace of the Aiguille Du Midi, Chamonix, Mont Blanc Massif, Alps, France, Europe

View on the skyline, Trianon, Deutsche Bank, Sparkasse, Frankfurter Buerocenter skyscrapers, in the back the Messeturm trade fair tower, Westend district, Frankfurt, Hesse, Germany, Europe

Panoramic terrace at the Aiguille du Midi, Chamonix, Mont Blanc Massif, Alps, France, Europe

Coin-operated telescope overlooking Berndorf, Guglzipf lookout, Triestingtal valley, Lower Austria, Austria, Europe

StubaiBlick observation deck, 2160 m, on Kreuzjoch panoramic path, Stubai Alps, Tyrol, Austria, Europe

Senior couple enjoying view from Schlossberg toward historic town, Graz, Styria, Austria, Europe

French Alps and Aiguille du midi panoramic viewing deck through the ice cave, Chamonix-Mont-Blanc, Rhone-Alpes, France

Person Viewing Athabasca Falls In The Early Morning