No matter what high art events are happening inside, this complex (comprising the Royal Festival Hall, The Hayward Gallery and Queen Elizabeth Hall) defiantly remains an open, people’s space. The RFH’s recent expansion and the de-cluttering of its open foyers make it even more wander-friendly and the hard slabs and pillars of QEH’s Undercroft have long made it a Mecca for skateboarders and graffiti artists. The perfect place for weekend afternoons by the river.