PARTIESPhotos: Show of StaminaThe art world parties hard at an all-night Guggenheim soiree.by Sue WilliamsonAug. 24, 20151Agathe Snow, “Stamina,” 2015. Photo courtesy of the Guggenheim.2Agathe Snow, “Stamina.” Photo by Enid Alvarez.3Onyx Collective. Photo by Enid Alvarez.4Agathe Snow, “Stamina,” 2015. Photo courtesy of the Guggenheim.5Wade and Friends. Photo by Enid Alvarez.6Agathe Snow, “Stamina.” Photo by Enid Alvarez.7Donald Cumming and Paul Galando. Photo by Enid Alvarez.