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The column was an architectural invention that allowed for the support of ceilings without the use of solid walls. Columns increase the space which can be spanned by a ceiling, allowing the entrance of more light. Columns also offer an alternative...

The Nazca civilization flourished on the southern coast of Peru between 200 BCE and 600 CE. They settled in the Nazca and other surrounding valleys with their principal religious and urban sites being Cahuachi and Ventilla, respectively...

The motte and bailey castle was an early form of medieval fortification especially popular with the Normans in northern France and Britain during the 11th century CE. A single tower was built on (or partially within) the motte or earth mound...

The keep, located within a courtyard and surrounded by a curtain wall, was the heart of a medieval castle. The hall keep was a low building while the tower keep or donjon could have three or more floors and be topped by turrets and battlements...

The pottery of ancient Korea stretches back to prehistory when simple brown wares were made and decorated with geometrical incisions. Potters would benefit from the ideas and techniques of their Chinese counterparts and go on to produce their...

Himeji Castle, located in the town of Himeji in the Hyogo Prefecture of Japan, was built on a natural hilltop between 1581 and 1609 CE. The complex is composed of a maze-like arrangement of fortified buildings, walls, and gates, with a six-storey...

The Tower of London is a castle located in London alongside the River Thames which was first built by William the Conqueror from c. 1077 and significantly added to over the centuries. Often referred to in England as simply 'the Tower', it...

Chaco Canyon was the center of a pre-Columbian civilization flourishing in the San Juan Basin of the American Southwest from the 9th to the 12th century CE. Chacoan civilization represents a singular period in the history of an ancient people...

Conwy Castle (aka Conway Castle), located in North Wales, was built by Edward I of England (r. 1272-1307 CE) from 1283 to 1292 CE to protect and maintain, along with several other castles, his newly acquired dominance in the region. Built...

The Cyclades are a group of islands in the southern Aegean situated between the Greek mainland and Turkey. The name was coined in the Archaic period as the islands form an approximate circle (kyklos) around the central and most sacred island...