Free Entrance to MoMA New York
You can visit MoMA (Museum of Modern Art) absolutely free. MoMA is one of the largest art museums in New York City. Free visits are only available on Friday evenings from 16:00 to 20:00. The entrance is sponsored by the shop UNIQLO. Expect long queues and a very busy museum.
If you want to visit on another day, you can buy tickets to the MoMA that not only allow you to skip the line but also include an entrance to MoMA PS1 on Long Island City.