So that they could be protected during times of war
in the late medieval period many medieval castles did have a primitive type of cannon.
There are no genuine medieval castles in the USA, because the Americas were not discovered until after the medieval period had ended. There are the "fairytale" Disney castles and some modern attempts at reconstructing medieval castles, but no genuine ones.
Castles and knights were prominent during the Medieval period in Europe. This period ranged from the 5th to 15th century and ended around the time when gunpowder became widely used on the battlefield.
None of them! Castles throughout medieval Europe were periodically subjected to sieges, during which time the castle's defensive structures were under attack. They were constantly being torn down and rebuilt, expanded and improved, and people were constantly developing better defensive features for castles. Some castles were even torn down completely and rebuilt again, but none of them stayed the same throughout the whole period.
There still are kings and queens and probably still castles but I think you're referring to the medieval time.
Castles usually took 7-12 years to build, but bigger ones could take up to 20 years! There would be medieval craftsmen that did masonry, sculpt the huge stone blocks and also architects who would design the castles themselves. Master masons would hire carpenters, glaziers etc. and were highly skilled during the medieval period.
violin
no. rulers in ancient Greece lived in palaces (with lots of columns and marble) castles are from the medieval Europe period and developed much later
the person was a mean person some times
During the medieval period people didn't just dress and act differently they thought differently too.
In the medieval period it was called a donjon. After the medieval period, when castles were no longer being built, the term used was "keep", a word that is widely used, incorrectly, today.
They are related because during the medieval period Christendom had begun.