Trick makes it seem a section of market building has broken free from foundations in London's Covent Garden
Stunning optical illusion shows top section of a building appearing to float in mid-air high above passers-by
The display, which imitates architecture in the area, took three months to make and 500 hours of painting
Artist Alex Chinneck created illusion using heavy counterweight strong enough to support the top section
This is the stunning optical illusion that appears to make a building at one of London's busiest tourist districts hover in mid-air.
To passers-by, it looks as though a section of the historic market building in Covent Garden has broken free from its foundations and is floating unaided, high above them.
But in reality, the display, which imitates the architecture in the area, is a complicated piece of technical wizardry which took months to create.