Apartment in the Heart of Paris
The apartment has two rooms (altogether 16m2), one of them is a bedroom and the other one is like a kitchen/sitting room/shower. The washroom/toilet is separate and shared on the floor. The best part I guess is that it's right in the centre of Paris. You walk out of your building and you can see Louvre and Orsay museums.
(In the first picture I marked the building in yellow)