Spain, Castile and Leon, Avila, The Puerta del Rastro is a monumental gate, it is part of the city walls that were built from 1090 onwards and are among the best-preserved and most complete in Europe.

Spain, Castile and Leon, Avila, Puerta del Alcazar or Gate of the Fortress is a monumental gate with very strong turrets flanking the entrance, it is part of the city walls that were built from 1090 o...

Spain, Castile and Leon, Avila, Puerta del Alcazar or Gate of the Fortress is a monumental gate with very strong turrets flanking the entrance, it is part of the city walls that were built from 1090 o...

Spain, Castile and Leon, Avila, The Puerta de San Vicente or Gate of St Vincent is a monumental gate with very strong turrets flanking the entrance, it is part of the city walls that were built from 1...

Spain, Castile and Leon, Avila, The Puerta de San Vicente or Gate of St Vincent is a monumental gate with very strong turrets flanking the entrance, it is part of the city walls that were built from 1...

Spain, Castile and Leon, Avila, The Puerta de San Vicente or Gate of St Vincent is a monumental gate with very strong turrets flanking the entrance, it is part of the city walls that were built from 1...

Spain, Castile and Leon, Avila, The Puerta de San Vicente or Gate of St Vincent is a monumental gate with very strong turrets flanking the entrance, it is part of the city walls that were built from 1...

Spain, Castile and Leon, Avila, The Puerta de San Vicente or Gate of St Vincent is a monumental gate with very strong turrets flanking the entrance, it is part of the city walls that were built from 1...

Republic of Ireland, County Donegal, Glencolmcille Folk Village also known as Father McDyers Folk Village, thatched-roof replica of a rural village in Ireland's most north westerly county dating from...

England, Devon, Dartmouth Castle, Fortified towers and castle exterior forming part of the sea wall.

England, Cambridgeshire, Cambridge, Kings College part view of exterior and clock tower.

Spain, Castile, Segovia, Puerta de San Andrés or St Andrew's Gate, part of the city's medieval defensive fortifications.