Deal Castle

Deal Castle stands as a masterpiece of Tudor military engineering, built by Henry VIII between 1539 and 1540 on the Kent coast near Deal. The fortress features a distinctive circular design with a central keep surrounded by six circular bastions, allowing all-round firepower from over 140 guns. Designed by Dutch military engineer Stefan von Haschenperg to defend against French and Spanish invasion, the castle's thick walls—up to 11 feet thick—housed an impressive arsenal. Originally a purely military installation, it was gradually transformed into a genteel residence by 1730. English Heritage now maintains the site for public visitation, offering insights into 16th-century coastal defense architecture.