Is ‘sin’ still relevant considering it can be forgiven?’ Under this notion, Rome’s Catholic culture and tradition are challenged through the establishment of a techno club in Pizza St. Eustachio. The club plays on the site’s strong Catholic influence and is dominated by a dark contrast of religious imagery and a theatrical decorative interior. Through a blissful irony, the audience reveres music instead of God and the boundaries of the sinful and the divine are challenged. The club creates a bridge between music and religion through its emphasis on the importance of communal experience and the power of collective energy. The design of the building is driven by questions of acoustic performance as well as a series of anecdotal architectural sins. These are both spatial, such as the domed ceiling that can be touched, and material, such as the use of rubber marble and brick slips. The audience enters a unique ‘sinful’ experience, guided by the powerful beat of techno music and the thrill of ‘sinning’ in the heart of Rome’s Catholic district.