Originally installed as an art exhibit, this 5-foot wide sliver of a house is now a permanent fixture of the city of Warsaw. The builders took advantage of a small gap between a pre-WWII house and a modern apartment block.
The ground floor has a micro-kitchen, a tiny bathroom, a place to sleep and a small work area. The architect says that the way he thinks the tenant will avoid claustrophobia is by having tons of light.
The first tenant, Israeli writer Etgar Keret will also have the honor of naming his house. It's officially known as Keret House. This is particularly touching because many of his family died in the Holocaust, and the house is also built at the site of one of Europe's largest Jewish ghettos.