In the repressed culture in which we live, dancing is still one of those activities that, while not frowned upon, is kept under wraps, with the bars and clubs that cater to it thrust in out-of-the-way places and under buildings. Given this, it's not surprising to see that a club as good as 1722 doesn't announce itself at all to the average passerby on North Charles Street. But after all the other clubs close, 1722 comes alive with stirring and soulful house music and the most diverse clientele of any club in the city. The sound system has muddied somewhat due to the extraordinary amounts of bass pushed through it, and the dance floor can get awfully crowded. But no matter who you may be, the music provided by DJs Atom and Burlin and the crowd will allow you to move in a way that would shock your closest friends. As long as you keep an open mind-the admonition that greets all clubbers before they enter-you'll have no problem dancing here.