The many uses of a rooftop

An unusual month-long event closed in Rotterdam this week – one that I didn’t get to visit, but that I think raises some interesting ideas. The event is called Rooftop Walk, and it is a series of events and exhibitions held on rooftops around the city, with walkways and bridges that make them accessible. (Great picture of the route here) It’s part of an ongoing programme of events that aims to highlight the fact that in most cities, rooftops are under-used space.

Rotterdam has 18 square kilo...