River Café always fascinates me. It has a gorgeous outdoor terrace, ideal for watching evening processions of gaudy tourist boats, each more luridly lit than the last, serving set dinners as they ply up and down the river.

The 41-room Hotel Orania.Berlin, which opened only August 2017 at Oranienplatz in the Kreuzberg area, must have got a lot of things right – one guest has just checked in for a 22nd visit.