Since the Criterion Restaurant opened in 1874, it's welcomed Sherlock Holmes creator, Sir Arthur Conan Doyle, and Sir Winston Churchill to its opulent dining room. For £19 you can now visit for champagne afternoon tea.
The Michelin-starred Mayfair restaurant Galvin at Windows combines cuisine of "heart-stopping brilliance" (The Good Food Guide 2015) with "stunning bird's-eye views" (The AA). Two courses and a champagne cocktail are now £26 at lunch, or £37 at dinner.
12-2:30pm Mon-Fri until 30 Jun; +£11 6-10pm Mon-Wed; 6-10:30pm Thu
Denbies Wine Estate in the Surrey hills is a family-run vineyard that produces award-winning wines. For £10.50, two people can take a tour on the vineyard train while enjoying a glass of Denbies's cuvée -- this is 50% less than the usual price.