The thinnest house in the world built between two tower blocks in Warsaw. The house measures 1.2 meters at its widest point and 71 centimeters at its narrowest. The building has been designed by Jakub Szczesny, who took his inspiration from the work of Israeli writer Etgar Keret.

The new house is only 1.2 meters, but it comes with a bathroom, a kitchen and a bedroom. Architect Jakub Szczesny said that he designed the two-story aluminum and plastic house three years ago to fill a narrow space between a pre-war house and a modern apartment block in downtown Warsaw.

The Foundation of Polish Modern Art and Warsaw Town Hall helped fund the project, which they consider an art work.

But it may not be easy for the tenants. The triangular building runs 10 meters deep at the base and stands 9 meters tall. Metal and aluminum pipes hold the structure nearly 3 meters above the ground, and visitors will climb a metal staircase and squeeze through a hole to enter the building. The ground floor contains a toilet and shower, a kitchen with a sink and cupboards, a table for two, and a bean bag sofa. Another metal ladder goes to the second floor, which has a nearly double-size bed, a table and a chair.

Szczesny told that the building achieves two goals: filing an empty city space and linking Warsaw's World War II tragedy, when more than half the city was destroyed, with modern buildings that went up afterward.

The first tenant Etgar Keret, an Israeli writer whose ancestors died in Poland during the Holocaust, moved to the house.

"It is a kind of a memorial to my family," said Keret, explaining that his mother's and father's families died in the Holocaust under Nazi Germany's occupation of Poland, and his paternal grandfather died in Warsaw's 1944 uprising against the Nazis.

The structure has been named Keret House after the Israeli writer.

He said he only visits Warsaw twice a year, so other tenants will be able to try out the tight quarters of the non-profit building for free, too.