ISBN:978-0-521-79124-3، مؤرشف من الأصل في 2020-03-26، اطلع عليه بتاريخ 2020-09-02 "The Castle of Otranto: The creepy tale that launched gothic fiction". BBC. Retrieved
"Newton's views on space, time, and motion", by Robert Rynasiewicz "Newton's Castle" - educational material "The Chymistry of Isaac Newton", research on his
Al-Andalus) Albufeira Paderne Castle Silves Silves Castle Alentejo Mértola Mosque of Nossa Senhora da Anunciação Estremadura Sintra Castle of the Moors هناك تركيز