"A cafe is an obvious choice when it comes to finding somewhere to hole up on your own, but Catalyst isn't the kind where you simply curl up by the nearest plug point. The predominantly daytime Holborn spot is one of the best cafes for food and drink in London. Its Greek-leaning menu, towering sandwiches, and superb house-roasted coffee mean that you can't help but get comfortable here. Especially on one of their stools by the window: perfect for watching the world go by." - Heidi Lauth Beasley, Jake Oliver, Sinead Cranna