The three things you need to know today in New York: Mon July 31

1. It’s the opening night of Shakespeare in the Park’s A Midsummer Night’s Dream! Head to the Delacorte Theater in Central Park to try to win free tickets.

2. It’s your last chance to see art show “Reason” at Gagosian Gallery. The free exhibit features trippy giant mushrooms and mirrored doors.

3. A museum dedicated to the 2000s just opened in New York. Head to the free pop-up exhibit now through August 10.

For more events, check in with Time Out throughout the day.