Field Guide to the Street Trees and Natural World of New York City with Leslie Day and Trudy Smoke
Tenement Museum (108 Orchard St., Manhattan)
Free, RSVP requested

“You don’t need a fancy research vessel – just a field guide, a sturdy pair of shoes, a Metrocard, and a desire to see the life teeming in our midst. Welcome to the Big Apple (Malus sylvestris gigas).” Richard Ellis

Click here for more free New York City events & things to do.