The Alhambra is a palace, fortress and garden complex in Granada, high in the mountains of Southern Spain. High on a hilltop, it is surrounded by the snow capped majestic Sierra Nevada mountains in Andalusia. The original structure was a small Roman fortress (the Romans got everywhere) but its ruins were renovated and rebuilt in the mid 13th century by the Moorish emir Mohammed ben Al-Ahmar of the Emirate of Granada. The result was a complex of palaces fit for Islamic royalty.
It was converted into a royal palace in 1333 by Yusuf I Sultan of Granada, and the site became the Royal Court of Ferdinand and Isabella, where Christopher Columbus received royal endorsement for his expedition.