What is a Gateway or entrance to fortified building?

A gateway or entrance to a fortified building is a strategic opening designed for access while providing security against intruders. Typically fortified with heavy doors, portcullises, and defensive features like towers or battlements, these entrances were crucial in medieval architecture. They often served as the first line of defense, controlling entry and exit while allowing for surveillance of approaching threats. Gateways might also include features like drawbridges or moats to enhance their defensive capabilities.