Mentioned by London City Calling
50 free things to do in London
"Another of the top things to do in London at night for free is heading for a night of free laughs at the Top Secret Comedy Club in London’s West End. Top Secret Comedy Clubhosts stand up comedy performances by some of the worlds top comedians. But for those looking for a free night out in London, the unique Comedy Club also offers completely free performances by up and coming comedians or those sampling out new material."