Spain, Castile and Leon, Avila, City walls that were built from 1090 onwards and are among the best-preserved and most complete in Europe with a memorial to Queen Isabel la Catolica.

Holy Catholic cave shrine in rock face above waterfall and pool. Contains sarcophagus of the Pelayo who defeated the moors in 718 AD. People partly seen sitting outside.edge of Picos de Europa Nati...