After three years of expansion, the San Francisco Museum of Modern Art held a press conference this afternoon to announce that its new building will reopen May 14, 2016. Enhancements include seven new floors of exhibition space, with the fourth floor larger in size than all five floors the original building that opened 20 years ago.

The extensively updated space will house more than 4,000 new works of art, making it the largest modern and contemporary art museum in America. This also makes it the largest museum of any kind in Northern California, in terms of gallery space. Impressively, admission for visitors ages 18 and under to the entire new SFMOMA will be free. Nearly 43,000 square feet of the new museum will be free and open to the public.

The total cost of renovations comes to approximately $610 million ($305M in construction, $245M from endowment, and $60M in expenses during the three-year closure).

To fill the space, SFMOMA recently gained rights to showcase 3,000 works of art from 200 donors for its permanent collection, of which 600 will be introduced when the museum reopens. Noteworthy artists including works by Pablo Picasso, Jasper Johns, Ed Ruscha, Diane Arbus and Robert Rauschenberg.