Seville Cathedral and Alcázar Sevilla, Spain

It is the biggest gothic church on the planet, and has been an Unesco World Heritage Site since 1987, alongside Seville’s Alcázar royal residence, initially worked by the city’s Moorish rulers. The Alcázar is famous as probably the best case of mudéjar design in Spain is as yet utilized today by the regal family as their Seville base, making it the most established illustrious royal residence still being used in Europe.