Last weekend, the National Building Museum in Washington, D.C., opened a 10,000 square-foot ball pit to the general public, and everyone cheered that, finally, someone made their childhood dreams come true.

A dog relaxes in an oxygen capsule “DOGS O2” at the Ownd Cafe on September 13, 2007 in Tokyo, Japan. The capsules come in a variety of sizes available for both dogs and cats for relaxation purposes. (Photo by Koichi Kamoshida/Getty Images)

Actors, clowns and mime artists celebrate “Humor Day” in St Petersburg on April 1, 2022. April 1 is also referred to as “April Fool’s Day” and is a time for playing pranks in the country. (Photo by Anatoly Maltsev/European Press Photo Agency)

Flores Rodriguez, of Puerto Rico, performs with his dough during the freestyle event, part of the Pizza World Championships, in Parma, northern Italy, Wednesday, April 17, 2013. The 22th edition of the championships run from April 15 to April 17. (Photo by Marco Vasini/AP Photo)

A adorable bear cub cant get enough of playing buckaroo – as it hangs onto its mum splashing about in a river. His mum was attempting to catch a fish supper for the pair as the plucky cub continued to jump on her back. And as she was concentrating on her meal the young bear became a distraction. So she sprung into life with him on her back before he was tossed into the water much to his delight. (Photo by Lisa Sidorsky/Caters News)

Kim Kardashian looks to have left her underwear at home as she heads out for an early dinner with boyfriend Kanye West in Miami on October 14, 2012. As Kim checked out her outfit in the reflection of her car, it became apparent that the reality star was not wearing any underwear as she showed off her see-through grey skirt. (Photo by Brett Kaffee/Thibault Monnier/PacificCoastNews.com)

Lady Gaga left her hotel to party in the east end of london for the night on September 10, 2016. She was wearing shiny hot pants and a little crop top showing off some under boob. But had sticky tape covering her nipples. Lady Gaga and Mark Ronson performed her new single “Perfect Illusion” at the General Browning Club in Hackney. Afterwards she went with a few friends to Metropolis strip club in Hackney. Lady Gaga left at 4am and returned to her Hotel. (Photo by Splash News and Pictures)

Huang Wensi in action during her final training session in Ningbo, Zhejiang province, China, before she heads to Taiwan for her Asia Female Continental Super Flyweight Championship match, September 23, 2018. Huang is one of a small but growing number of women in China to embrace professional boxing, relishing its intense nature despite traditional stereotypes that steer women away from such activities. “A women is not just limited to being a wife or mother in the house”, she said. (Photo by Yue Wu/Reuters)