While it’s true that Wilton’s Music Hall has had a little work done over the years, its original Victorian charms can still be found in abundance. And who could blame it for trying to keep up appearances? The building’s been around in one form or another since at least 1743, when it served as an ale house before being reinvented a century later as a music hall for the working class people who lived nearby. Reopened as a multi-genre theater in 2004, it’s now considered one of the most important surviving music halls in the world, and every trip through its “hidden” entrance on Grace’s Alley (look for the intricate relief on the walls) promises an experience that spans centuries. Clearly that means you’ve got to be the one to take your friends here for the first time, so pick an event from the schedule–you’ll find everything from singer-songerwriter Kelis to a ping-pong tournament–and make a plan. From the moment you enter the vaulted hall, complete with wrap-around balcony, velvet curtains, and weathered floorboards, you’ll feel the energy of past performances, giving whatever you’re here to see–music, film, poetry slam–an aura of timelessness. When the final note has rung out, depart through the discrete doorway as you try your best to keep this hip old hot spot a secret. If your friends are as intrigued as you are about “the city’s hidden stage,” come back Monday night at 6 for a one-hour guided history tour, when the ghosts of the past really come out.