If you like beer and you like choices, head for Brickskeller, which has been around for nearly 40 years and offers about 800 beers from around the world. If you can't make up your mind, ask one of the waiters, who tend to be knowledgeable about the brews. The tavern draws students, college professors, embassy types, and people from the neighborhood. Brickskeller is a series of interconnecting rooms filled with gingham tableclothed tables; upstairs rooms are open only weekend nights. The food is generally okay -- and the burgers are more than okay, especially the excellent Brickburger, topped with bacon, salami, onion, and cheese.