The $1.26 billion development, which opens to the public today, combines retail, restaurants, entertainment venues, and lush gardens under a vast toroidal glass roof.

The design partner at PWP Landscape Architecture creates landscapes at vastly different scales, from the pastoral beauty of Glenstone to an unusual elevated urban park, tucked above the dense downtown of San Francisco.

A recent visit to the museum in Potomac, Maryland, offered a glimpse at a constellation of new structures, set to open in October.