Greek fortifications: Did you mean...?

Confederate fortifications at Fort Mahone during the Siege of Petersburg in the American Civil War, 1865. Library of Congress, Washington, D.C.

A portion of the 16-17th century fortifications at San Juan de Ulúa, an island opposite the port of Veracruz, Mexico, once a major port on the Spanish Main. The rings in the walls were for ships to tie themselves to.

Remains of the 5th century BCE fortifications at Amphipolis, northern Greece.

A 1786 map showing the defences and fortifications prior to the Siege of Charleston, South Carolina (29 March to 12 May 1780) during the American Revolutionary War. (From David Ramsey's "The History of the Revolution of South Carolina")

An illustration of the fortifications of Bristol during the English Civil Wars (1642-51). The city was stormed by Royalists led by Prince Rupert (1619-82) on 26 July 1643. The city was then lost to the Parliamentarians in September 1645...

A photograph of German troops having captured the French fortifications at Maubeuge in the early stages of the First World War (1914-18). Imperial War Museums, London.

The north fortification walls of Sinope, known today as Sinop Castle (Turkish: Sinop Kalesi), located in the city of Sinop on the northernmost edge of the Turkish side of the Black Sea coast. Sinope was the earliest Greek colony founded on...

The coinage of ancient Greece has given us some of the most recognisable images from antiquity as they were stamped with designs to proudly declare the identity of the city which minted them and guarantee their value. One of the great archaeological...

Greek mathematics, the study of numbers and their properties, patterns, structure, space, apparent change, and measurement, is said to have originated with Thales of Miletus (l. c. 585 BCE) but was clearly understood during the periods of...

The Inca Sacsayhuaman (also Saqsawaman) fortress-temple complex of northern Cuzco, 13th-15th century CE.