The Daily Traveler: Amazing Observation Decks

These incredible viewing platforms located atop soaring skyscrapers offer 360-degree views over cities like Paris, New York, and Shanghai.

London
Opened in February 2013, the main observation gallery at this Renzo Piano-designed skyscraper is 800 feet high—the tallest in Western Europe—which is enough to see 40 miles around the city on a clear day. (And, if it's really foggy, you'll be able to return for free). Can't tell what you're looking at? High-tech digital telescopes come with touch screens that'll give you information about 200 London attractions below. When you're finished, you can ascend even higher to the 72nd floor, which is open and exposed to the elements so you can hear the din of the city below.

Click through to see the full slideshow at the Condé Nast Traveler.

Photo: The View from The Shard 2014