National Museum of Mathematics (MoMath) Opened During the Holidays

National Museum of Mathematics Celebrates

Fifth Anniversary with December Holiday Events

including Winter Solstice Festival, Thursday, December 21 at 6 p.m.

Museum Open Christmas Eve and Christmas Day

10 a.m. – 5 p.m.

MoMath welcomes families, tourists, and visitors to spend the holidays exploring the wonders of math

The enormously popular National Museum of Mathematics (MoMath), which has attracted more than 750,000 New Yorkers and visitors from around the world, will celebrate its fifth anniversary with a month of special programs, events, and activities for schools, guests, and families.

Maintaining a Holiday tradition, the Museum will celebrate the Winter Solstice by partnering with the Flatiron/23rdStreet Partnership with a free public event on Thursday, December 21 at 6 p.m. at the Flatiron North Public Plaza on East 23rd Street between Broadway and Fifth Avenue.  There will be free hot beverages and small bites provided by local eatery BONMi, an opportunity to build “Spiral Solstice,” a giant, dynamic mathematical sculpture, a chance to spin the Flatiron Prize Wheel to win prizes from local businesses, and a food drive for the Food Bank for New York City. 

On Christmas Eve and Christmas Day, the Museum will be open 10 a.m. – 5 p.m. with special tours and engaging math sessions available on both days.

Launched on December 12, 2012, MoMath has been welcomed by New Yorkers, tourists, and critics with open arms and rave reviews. The only mathematics museum in North America, MoMath, located beside Manhattan’s Madison Square Park in Manhattan, has grown from a national traveling math exhibit – Math Midway – to a landmark cultural and educational institution with more than three dozen state-of-the-art interactive exhibits.

In December, MoMath will celebrate the holidays with the following events and activities: 


Math Encounters: “Winding Worlds: An Exploration of Curves on Surfaces” with Moira Chas

Wednesday, December 6, 4:00 pm and 7:00 pm

Is it possible to divide a king’s land among four heirs so that each heir’s land shares a boundary with every other heir’s land? What about five heirs? On a land with two lakes, it’s impossible to construct a circular path that winds the lakes multiple times without crossing itself… but it is possible with three or more lakes. Join mathematician Moira Chas as we explore the world of curves, crossings, surfaces, and more! Learn more and register at

Holiday Origami

Sunday, December 10, 2:00 pm to 4:00 pm

Join Wendy Zeichner, President of OrigamiUSA, for an exploration of modular origami. Using just a few sheets of paper, create a small gift box out of geometric shapes – it’s great for the holidays or for any time you want to share a small treat with a friend. A small materials fee may apply.

Free Play: A FREE afternoon at MoMath with extended Museum hours

Wednesday, December 13, 2:00 pm to 6:00 pm                                 For one afternoon, admission to MoMath will be completely free for all visitors!

Explore hyperbolic space: don’t miss MoMath’s VR experience — one day only!

Sunday, December 17, 2:00 pm

Visit MoMath on Sunday, November 17, 2:00 pm to 5:00 pm, and join Elisabetta Matsumoto and Henry Segerman, as featured in the New York Times ,on an exciting journey of hyperbolic space.

Beyond the Flat World: An exploration of non-Euclidean virtual reality

Tuesday, December 19, 6:00 pm

The properties of Euclidean (flat) space seem so natural and obvious that it took over 2,000 years to imagine an alternative. The eventual discovery of hyperbolic geometry in the 19th century shook assumptions about the nature of reality. Join Henry Segerman and Elisabetta Matsumoto, as featured in the New York Times, as they explore exotic spaces using the latest wave of virtual reality hardware. Guests are invited to stick around after the talk for a chance to wander through hyperbolic space using the latest in VR technology: the HTC Vive, that tracks both orientation and position. Learn more and register at

Solstice Spirals

Thursday, December 21, 6:00 pm

Visitors are invited to take shapes and create a giant sculpture based on the Fibonacci series, which underlies patterns seen in natural objects such as sunflowers, pinecones and roses. The Fibonacci series is an additive sequence where any number in the sequence is the sum of the previous two numbers. (e.g. 1,1,2,3,5,8,13,21,34…)

Free hot beverages and small bites to eat will be provided. Guests will also have a chance to spin the Flatiron prize wheel to win prizes from local businesses and to participate in a food drive to benefit the Food Bank for New York City. 

Museum Open Christmas Eve and Christmas Day

Saturday, December 24 and Sunday, December 25

10 a.m. – 5 p.m.

MoMath welcomes families and visitors to spend the holiday exploring the wonders of math.

MoMath’s Derivatives Tour Program

Fridays, Saturdays, and Sundays

Announcing the newest way to enjoy MoMath: The MoMath Derivatives tour program. Visitors are able to enjoy a new perspective on MoMath in a small group setting as they wander the Museum with an expert tour guide leading the way. Choose from the following two tours available each day on Friday, Saturday on Sunday throughout December. Learn more and register at

Colorful Characters

What kinds of people do mathematics? Learn about some of the interesting folks who have shaped the way mathematicians and the public think about mathematics, the work they did, and how their stories relate to MoMath’s exhibits.

Hidden Math

Think you’ve seen all of MoMath? Think again! This tour tracks the many mathematical “Easter eggs” (hidden secrets) scattered throughout the Museum.

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