1. Dia Beacon — Beacon, NY (Hudson Valley)
A vast contemporary art museum in a former Nabisco box factory.
Dia Beacon fills a former Nabisco box-printing factory on the Hudson with large-scale works by artists like Richard Serra, Andy Warhol and Louise Bourgeois. The town of Beacon has good cafés and antique shops.
Metro-North from Grand Central takes about 80 minutes.
Good to know: Metro-North sometimes offers a combined rail-and-admission ticket.