We all know looks can be deceiving.
While it appears that people are literally climbing the walls of this East London townhouse - it's in fact an optical illusion created by Argentinean artist Leandro Erlich.
The installation called Dalston House was designed on a plot of land in Hackney that has been largely vacant since the Second World War.
SOUNDBITE: Argentinean artist Leandro Erlich saying (English):
"It is quite strange because there is this huge mirror that reflects the facade, giving the appearance of being vertical allowing people to stroll in this very unusual and quite surreal experience."
And that last bit Erlich points out, is what makes this work of art unique.
Its fun and playful nature means that visitors are actually needed for it to function properly.
SOUNDBITE: Suzie Zumpe, installation visitor saying (English):
"We saw pictures in the paper yesterday and Albert, Spider-man here, thought it would be good to come suited up this morning before nursery."
Dalston House will be open to the public until August 4th.
An art installation that defies gravity (1:19)
June 26 - A street in East London goes topsy-turvy after an Argentine artist creates the illusion of a 3D house. Sharon Reich reports. ( Transcript )