Crusader garrison under siege fire (Giuseppe Rava)
View of Delhi, India, British Empire, 19th century AD
Doraha Fort, India

Illustration by Romeyn de Hooghe, from The Works of Mars (1671).

Source: Rijksmuseum

Available to buy as a print.

https://pdimagearchive.org/images/2c1f1218-3764-47ed-ac6b-f147a5efd4f9

#mathematics #fortifications #diagrams #warfare #military #construction #geometry #architecture #war #art #publicdomain

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Map of Byzantium/Constantinople/Istanbul, 16th century AD (Franz Hogenberg)
Map of Byzantium/Constantinople/Istanbul, 16th century AD (Franz Hogenberg)