Swan Oyster Depot

This is one of my top five restaurants of all time. I've been twice—each visit a decade apart—and it's been absolute bliss both times. I'm a sucker for fresh seafood, which is plentiful here. Add a few cold oysters, a bowl of divine clam chowder, chunks of fresh sourdough topped with salted butter, a crab salad, and an ambiance so authentic you'll think you've time-traveled back 30 years. Expect to wait up to an hour for a seat at the marble bar, which is the only place to sit. And once you do grab a stool, squished between diners on both sides, don't expect a bargain. This place may look like a hole in the wall, but prices don't match. (You'll throw down at least $30 for lunch per person). Be sure to chat up your waiter while he shucks your oysters—he doubles as a storyteller, and he's likely part of the family that's owned this place for 50 or so years. After lunch, walk to the corner and grab a seat on the California cable car, soaking up everything that is San Francisco.