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Somalia
None. In ancient times no castles were built, but there were forts and fortresses.
There are a large number of castles in Cornwall from Iron Age forts to a mock Victorian Castle
Oman has a very large population and there are tons of castles and forts.
Colin A. Pomeroy has written: 'Castles and forts' -- subject(s): Antiquities, Castles, Fortification, Military History
Well the first castles were structures of a tower on a high floor. Then they came up with fancier castes that were used for king and queens. The first castles were like forts.
In castles and manors.
The last hill forts in Britain were largely abandoned by around the 1st century AD, while the surge of motte and bailey castles began in the late 11th century, following the Norman Conquest of 1066. This indicates a gap of approximately 1,000 years between the decline of hill forts and the rise of motte and bailey castles.
Most of the buildings in St Augustine (there aren't really any castles - forts, churches, etc) are made of coquina stone.
They served as forts to defend different areas from attack and conquest.
The country of Ghana is located on AfricaÍs West Coast. There are over thirty castles or forts as they are also known as, in Ghana. Some of the more known castles are Cape Cod Castle and Elmina Castle.
Usually from stone, but early motte and baily forts were made of wood. Some fortresses in Eastern Europe were made of brick, since stone is scarce there.