The document describes The Hanging Houses of Cuenca, Spain. Nestled in the city of Cuenca, the houses were built perched high atop hills starting in the 15th century due to lack of space for the growing population. Known as "hanging houses", they seemed to cling perilously to rocky outcroppings, sometimes reaching seven or eight gravity-defying stories that extended out over the valley below. The only remaining intact structure of this type is Las Casas Colgadas, now home to a museum and restaurant.