The A'DAM Lookout is a roof deck on the north bank of the IJ, and it is the one place you can see the shape of Amsterdam from. The city is flat and its old centre is low, so from inside it there is no vantage point at all. From up here it resolves into its plan: the medieval core and its spires, the arcs of the canal ring behind them, the harbour cranes, and beyond it all the flat polder with wind turbines standing in it.
The tower under it is a 1971 office block built for Shell, abandoned when the company left, and reopened as studios, bars and hotel rooms with the deck on the roof. The crossing is part of the trip: the ferry from behind Centraal Station puts the working water in front of you — barges, harbour traffic, the white wedge of the EYE Film Museum on the bank. The deck itself is open air, with a swing at the edge that pushes you out over the parapet, and it works best in the half hour when the city switches its lights on.