London: Madison
With a St Paul's backdrop and incredible views across London, one trip to Madison could fill your Insta feed for months. The food is just as photo-worthy, from perfectly-plated yellowfin tuna tartare to Australian Wagyu tomahawk steak.
The cocktails are another photodump all by themselves. Whether you go for the Highland Bloom, Winter Sunset or Almond Boulevardier, the cheers in front of the St Paul's dome is just asking to be captured.