This Washington museum has been turned into a gigantic ball pit, and the pictures are unbelievable

If you are in Washington, D.C., and fancying a dip in the ocean, look no further.

You could swim right in the heart of the city — in a pool of nearly one million translucent plastic balls that have been set up as an exhibit in the National Building Museum.

Special thanks to Noah Kalina, who supplied the photos.

The 10,000-square-foot exhibit -- called the Beach -- spans the hall of the National Building Museum.

The museum collaborated with Snarkitecture -- a Brooklyn-based design studio -- to build its largest-ever public installation.

It opened on July 4.

The Beach came into being after nearly 160 funders put in more than $12,000 in a crowdsourcing campaign on Indiegogo.

Funders could ask to have their names written on the balls.

Beach chairs and umbrellas dot the 50-foot 'shoreline.'

All those balls are recyclable and are made with anti-microbial material, so the green-minded and hygiene-conscious needn't worry before taking a dip.

Visitors can dive into this 'ocean' without fear of drowning -- or a shark attack.

The exhibit runs until September 7.

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