Elbphilharmonie, Hamburg

Hamburg's concert hall, opened in 2017: a glass wave-like structure built on top of an old brick warehouse at the tip of the HafenCity docks. Even without a concert ticket, you can ride the long curved escalator up to the Plaza, a public viewing platform 37 m up that runs all the way around the building, with views over the port and the city.

Plaza tickets are free on the day, or can be booked online for a small fee. Concerts in the Grand Hall sell out fast. Harbour boat tours leave from the Landungsbrücken nearby.