From the Newseum website:

Now through Sept. 7, 2015

The Newseum offers everything from the Berlin Wall and Pulitzer Prize-winning photos to interactive games. This summer, there’s one more great reason to visit — kids get in free! July 1 through Labor Day, the Newseum waives admission for youth visitors age 18 and younger. Up to four kids visit for free with each paid adult or senior admission, or Press Pass membership.

Whether you have just a few hours or want to spend all day, you’ll find something for everyone in the Newseum’s 15 theaters and 15 galleries. Time running short? Remember to save your admission ticket and come back the next day for free!