@occupyPOPS – a twitter account that organizes weekly visits to Privately Owned Public Spaces in New York City and asks participants to add and verify data about these contested spaces | by Christo de Klerk
Imponderabilia (1977), a collaborative performance by artist Marina Abramovic and Ulay, in which they flanked the entrance to the Galleria Communale d’Arte Moderna in Bologna, Italy—completely nude.