Raising your pinkies at a proper British afternoon tea in London (preferably with scones)
A lovely courtyard garden spot for lunch or afternoon tea amid the 18th century splendors of the Wallace Collection museum
An elegant 18C pavilion where Queen Anne once entertained
Until the early 19th century, London did not have any hotels, only coaching inns, which looked remarkably like modern multi-story motels, the rooms opening off outdoor corridors. The last (partially) surviving coaching inn is The George Inn, though only its pub component is still active.