A rat isn’t necessarily something you want to see waiting at the entrance of your hotel in London. But, when that rat came from the hands of the world’s most elusive street artist, you’ll let it slide — and, yes, we are talking about a mural here. Built on the site of what was once an iconic alt-culture venue, The Foundry, art’otel London Hoxton rises 27 floors over the trendy East End, offering a...