Potato pierogies are available 24 hours a day at this East Village stalwart, which opened in 1954. The name means "rainbow" in Ukrainian. The authentic Ukrainian-slash-diner food is the perfect stick-to-your-ribs ending to a night on the town—or beginning to a new day, as the restaurant serves a full array of breakfast staples. It's a neighborhood experience, with tables of families sharing space with the hipsters. The spacious, sunny interior, with giant wall paintings to please the eye, is great for people-watching; don't take the servers' studied indifference personally.