The B1 rooftop bar is located in the western tower of Helvetia Campus, which was designed by Herzog & de Meuron, and offers the most amazing views over the city. The duo were the first architects I met when I was a teenager growing up in Switzerland, marking the beginning of my engagement with architecture. Notably, they designed the Serpentine Pavilion in 2012 with Ai Weiwei. The bar also features a light installation by the artist James Turrell. —Hans Ulrich Obrist

Hans Ulrich Obrist is a curator, critic, and artistic director of the Serpentine Galleries