The Barbican Centre is a performing arts center in the Barbican Estate of the City of London and the largest of its kind in Europe. The center hosts classical and contemporary music concerts, theatre performances, film screenings and art exhibitions. It also houses a library, three restaurants, and a conservatory. Designed by Peter Chamberlin, Geoffry Powell and Christoph Bon of Chamberlin, Powell and Bon in the Brutalist style, the complex has a multi-level layout with numerous entrances. Lines painted on the ground help would-be audience members avoid getting lost on the walkways of the Barbican Estate, within which the centre is located, on the way to it.