Size:75 sq. ft.

Location: Rome, Italy

Architect and designer Marco Pierazzi saw potential in an abandoned, one-room alleyway house just steps from Roman landmarks like the Pantheon and Saint Peter's Square. He bought it, fixed it up, and lived there with his wife until their child was born.

Pierazzi now rents what he calls the "smallest house in Italy," making it a convenient place to stay on a Roman holiday. Featuring all the comforts of home, the little house has a full kitchen, a bathroom with a shower, a small lofted sofa bed, and an LED TV.