We'd read about a place called Alcala del Jucar in the region of Castilla La Mancha. It's only about 135kms from us so we thought we'd go and have a look.
Amazing place; there's a deep limestone gorge produced by the river Jucar and the town has been built by burrowing into the walls of the gorge so, despite their normal looking facades, each of the houses is actually a cave dug into the cliffs. The houses spiral up the cliff, fronted by narrow streets that climb to the castle on top of the hill. The only motorised transport in most of the town is mopeds that scurry up and down the steps though we were passed by one young bloke driving a dumper truck!