You just saw a guy with a briefcase and a girl with dreads and about 15 tattoos walk into a 77-year-old church together. "WTF?" you might be thinking. But if it's Sunday night at 9:30, you should walk in too, because it's time for Compline at St. Mark's on Capitol Hill. Wearing old sweats? So what?—you'll probably be sitting on the floor, and no one cares what you wear here anyway. Just sit back and listen to the church's 18-member choir party like it's the year 509. They sing evening prayers the way monks have done ever since there were monks, and they do it beautifully. You've never felt this calm in your life, I promise you, no matter what your religious preferences. If you're lucky, you'll get the after-hours special—an abbreviated organ concert on the church's gorgeous pipe organ. Usually this is classical too, but rumors abound of Led Zeppelin and Queen slipped alongside Mozart and Bach in the organist's music case. And it's all free of charge.—Emma Breysse