Whole trips could be planned around eating out near Trafalgar Square. One way to narrow your focus is to seek out on the gems on quieter streets. Top of the agenda should be a big night out at British chef Skye Gyngell’s dreamy Spring restaurant in Somerset House, lauded for its seasonal ingredients and stunning dining room. A duck-focused feast awaits at Duck & Waffle Local, the younger and more affordable outpost of the much-lauded East End original. At Brasserie Zedel on Sherwood Street, you’ll find authentic French fare in a grand Beaux-Arts dining room—plus easy access to their downstairs Bar Americain for martinis and Manhattans in an opulent setting. For a dose of British kitsch in stumbling distance from bed, hit the Gin Parlour in Mr. Fogg’s Tavern and admire the Phileas Fogg-themed decor over a classic G&T.