Very few towns or villages are as impressive on arrival as Avilá, located on the plains of Castile and Leon (Spain). The birth place of Santa Teresa of Avilá the town sits at more than 1130 m (3660ft) above sea level which explains its extremes in temperature.
Once home to the Knights of Avilá after the defeat of the Moors (Arabs), the town is known for its incredible walls. Begun in 1180, today the walls surround the town for 2.5 km (1.6mi), incorporating 88 circular defensive towers. They average a width of 3m (10ft) and a height of 12m (40ft). The site was registered as a National Monument in 1884 and in 1985 declared a World Heritage site by Unesco.