Perched 10 floors up, on the top of the Montcalm Royal London House you’ll find Aviary. The pretty swish rooftop bar doesn’t just have great views across London, but serves an extensive range of cocktails and even has an undercover restaurant for when British summertime really kicks in – or you just fancy some grub. If you wanna take your bottomless brunch or Sunday roast up a level (or ten) this is the place.