VISIT: The Coolest Castles in the World

Alhambra, Spain 

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Alhambra is a palace and fortress complex in Andalusia, Spain, that was built by Nasrid emir Mohammed ben Al-Ahmar of the Emirate of Granada in the 13th century.

It was constructed atop Roman fortification ruins and formerly became a royal palace in 1333. About a century later it transformed into the Royal Court of Ferdinand and Isabella.

The palace itself has architectural remnants of the reign of the Muslim Dynasty on the Iberian Peninsula.

The Moorish architecture can be characterized by the horseshoe arches, intricate patterns, and ornate decoration.