Built by the Crown of Aragon on the site of a Moorish-era mosque, Palma cathedral is 121 metres long, 55 metres wide and its nave is 44 metres tall.
Designed in the Catalan Gothic style but with Northern European influences, it was begun by King James I of Aragon in 1229 but only finished in 1601. It sits within the old city of Palma atop the former citadel of the Roman city, between the Royal Palace of La Almudaina and the episcopal palace. It also overlooks the Parc de la Mar and the Mediterranean Sea.
Light pours in through the rose window - one of the world's largest, 12m across and studded with 1,236 pieces of stained glass. The columns are ringed with wrought-iron candelabra designed by Gaudi. His most controversial addition is the unfinished Crown of Thorns, fashioned from cardboard and cork and suspended above the altar. Be sure to walk around to the south front, facing the sea, to look at the Portal del Mirador a 15th-century door by Guillem Sagrera featuring scenes from the Last Supper.References:
The city walls of Avila were built in the 11th century to protect the citizens from the Moors. They have been well maintained throughout the centuries and are now a major tourist attraction as well as a UNESCO World Heritage Site. Visitors can walk around about half of the length of the walls.
The layout of the city is an even quadrilateral with a perimeter of 2,516 m. Its walls, which consist in part of stones already used in earlier constructions, have an average thickness of 3 m. Access to the city is afforded by nine gates of different periods; twin 20 m high towers, linked by a semi-circular arch, flank the oldest ones, Puerta de San Vicente and Puerta del Alcázar.