Complex sentence: The Alhambra World Heritage Site, Granada's biggest tourist attraction, showcases one of the very finest architectural legacies of Moorish rule in Spain, which in Granada lasted from 711 until 1492.
Split into simpler sentences: The Alhambra World Heritage Site is Granada's biggest tourist attraction. It is one of the very finest architectural legacies of Moorish rule in Spain, which in Granada lasted from 711 until 1492.