It looks a lot like gravity has deserted this house in Dalston, East London: people are happily climbing up the front of the property, sitting on its windowsills, and generally acting as if Sir Isaac Newton was never hit by that apple.
But there's something else going on here: the "house" is actually an installation by Argentine artist Leandro Erlich.
Passersby can scale the house by interacting with a detailed facade that Erlich built on the ground. Their reflections are then caught in a giant angled mirror, making it appear that they are up in the air.
Visitors hang out on the facade (Photo: Getty)
"I'm always interested in finding ways to question our ordinary world," the artist told the BBC's Time Muffett. "I like the idea of questioning reality. I would hope that people will go back to their daily life thinking that things are not always the way they seem."
Erlich has played with perception in other pieces, including a 2008 work called 'Swimming Pool', which showed participants seemingly standing underwater in a dry pool.
The piece was commissioned by the Barbican Art Gallery.
"We are thrilled to be able to present Leandro Erlich's work in the heart of Hackney," Barbican curator Jane Alison told Metro UK.
"Dalston House is a theatrical spectacle, one where the audience makes the show. It is a delightful experience suitable for all ages."