A homecoming for one of art’s boldest visionaries, Philadelphia’s new urban sanctuary is ready to reimagine what a museum can ...

Calder, who died in 1976, became famous in part for this kind of kinetic sculpture that hangs in the air. One of his practices was to break glass and incorporate the pieces into his mobiles ...

Calder at work on a mobile, ”Gamma,” in 1947. In the foreground on the right is “Sword Plant.” 2023 Calder Foundation, New York / Artists Rights Society (ARS), New York ...

The foundation, which has assets of $665 million, makes money off the sale of Calder’s works, and the false claims about the mobile were “part of a racketeering scheme by him to . . . to ...