An Hour in Chelsea

1. Alex Katz

At PaceWildenstein, 545 W. 22nd St., nr. Eleventh Ave.; 212-929-7000

Paintings from the sixties, including portraits and landscapes.

2. Jenny Holzer

At Cheim & Read, 547 W. 25th St., nr. Eleventh Ave.; 212-242-7727

Paintings and one of her signature LED displays, incorporating declassified government documents.

3. Richard Serra

At Gagosian, 555 W. 24th St., nr. Eleventh Ave.; 212-741-1111

1111 “Rolled and Forged,” five new large- scale sculptures.

An Hour in Chelsea