Vertigo 42

There's certainly plenty at which to gawp at this 360-degree City champagne bar - seats are perched at more than 400ft high, at the top of Tower 42. Expect champagnes from most of the big-hitting houses alongside a few classic cocktails, bottles of wine and food ranging from sharing platters and charcuterie boards to smoked salmon, salads and blinis with crème fraîche.