Art Alfresco

1. Dale Chihuly

At the New York Botanical Garden, through October 29

Colorful glass sculptures set against natural flora and fauna.

2. William Pope. L

“The Black Factory,” at Union Square, July 22

The mobile performance-art installation makes a stop in Manhattan; audience members are invited to bring objects that represent “blackness.”

3. “Beatfuse!”

At P.S. 1, through September 9

Plywood-and-mesh canopies over tidal pools, designed by the firm OBRA, shelter “Warm Up” partygoers on Saturdays.

Art Alfresco