You never know where the next pop-up theatre is going to materialise (which I guess is why they're called pop-ups,) and there's particularly majestic surroundings for the transfer of David Morton's Australian and US hit The Wider Earth. In fact the excuse to pay a visit to the Natural History Museum what must be decades since I last went there was one of the attractions of the play, which has set up shop in the Jerwood Gallery, a space that normally houses temporary exhibitions and now has a custom-built theatre in it. The gallery is right next to the museum's Darwin Centre, so it couldn't be better-placed to house the story of the young Charles Darwin (Bradley Foster) on his two-year journey (that actually ended up lasting five years) circumnavigating the globe on the Beagle.