If you happen to wander around South Kensington don’t miss the Natural History Museum! This amazing neo-gothic building hosts plenty of permanent and temporary exhibitions (most of them are free!). Among the most famous there are the popular Dinosaurs Gallery, the Mammals display and the Fossils collection. On the last Friday of the month the museum is open until 10 pm, with peculiar interactive exhibitions that change every month. Plus, wandering around the magnificent Central Hall in the night will give you a true Hogwarts-style experience!