Observation deck

The Edge at 30 Hudson Yards in Midtown Manhattan, containing optically transparent flooring, looking toward Lower Manhattan, opened in 2020.
View from the Shanghai Tower observation deck
Visitors on the observation deck of the Skylon Tower, which overlooks Niagara Falls
The observation deck from the TK Elevator Test Tower, which overlooks Germany's Black Forest and the Alps
Glass balconies attached to the St Eusebius Church in Arnhem, Netherlands
Footage of the panoramic views during an 1898 ascent of the Eiffel Tower by the Lumière brothers

An observation deck, observation platform, or viewing platform is an elevated sightseeing platform usually situated upon a tall architectural structure, such as a skyscraper or observation tower. Observation decks are sometimes enclosed from weather, and a few may include coin-operated telescopes for viewing distant features.