Now, you can have all of the perks of the beach without having to go outside, get wet, deal with sand or worry about the sun.
The pseudo waterfront opened on July 4, and it will run until September 7.
The project was designed by Snarkitecture, a design firm which said,
[It] is a collaborative and experimental practice operating in territories between art and architecture.
In a press conference, Snarkitecture cofounder Alex Mustonen said,
We wanted to create something that was very widely accessible for citizens and visitors to be able to come out here and spend an afternoon or weekend hanging out on the beach indoors.
If you're a germaphobe, rest assured the balls are treated with an anti-bacterial coating and are cleaned every night.
#TheBeachDC by @snarkitecture at @nationalbuildingmuseum http://t.co/NlGGCPDw5t pic.twitter.com/91acA4YcVd — Deane Madsen (@deane_madsen) July 2, 2015
Admission to the museum is $16 for adults and $13 children or, if you're a museum member, $10 for adults and $5 for children.