On the outside it doesn't look very appealing. Picture a narrow entrance in a back street, with two or three enormous bouncers beside it. But don't give up just yet. Once you make your way one floor down (the club is literally 'underground') you’ll find yourself in one of the most beautiful clubs in the city. It's large, well-maintained and has an impressive sound system and is known as a stage for hard electronic music, especially techno music. Over the past years big names in this genre, like James Holden and Sven Väth, have played here. Perhaps its best feature is that everyone is welcome here from students to real working men from Utrecht.