Get ready for the revolution! After a three-year renovation at its landmark Central Park West location, the New-York Historical Society opens its doors at 11 am and stays open late until 11 pm. With magnificent new galleries, an all-new children’s museum, fascinating exhibitions and a multimedia film experience, everything is new. So step inside and join the revolution.

Free admission for children, veterans and active military all-day. Free admission for adults from 6-11 pm.

New York History Mysteries Scavenger Hunt – 6:30 pm ($17.50)
Uncover the most unusual and eccentric aspects of New York City history on this madcap adventure in the newly renovated galleries of the New-York Historical Society. You’ll rummage through the Luce Center, a veritable artifact-stuffed attic with such remarkable items as Washington’s Valley Forge cot, a piece of a statue pulled down in a riot after the Declaration of Independence was first read in the city, antique toys, the portrait of a cross-dressing governor and Aaron Burr’s death mask. Purchase tickets at watsonadventures.com.

The Big Quiz Thing – 8 pm ($10)
Prepare yourselves, history geniuses. New York City’s own live game show spectacular, the Big Quiz Thing, will present a multimedia live trivia game show for history buffs, in celebration of the New-York Historical Society’s grand reopening. Gather a team of friends for a chance to win excellent prizes and glory!

Late-Night Champagne in Caffè Storico – 10 pm
A late-night toast to opening day in the new Stephen Starr restaurant, Caffè Storico.