Huntingdon Castle is a historic site located in Huntingdon, Cambridgeshire, England. Originally built in the 11th century, it served as a royal residence and a defensive stronghold. The castle played a significant role during the Norman Conquest and was later used by various noble families. Today, the remains of the castle are mostly ruins, with only a few structures still standing. The site offers visitors a glimpse into medieval architecture and history. It is situated near the River Great Ouse, providing a scenic backdrop for those exploring the area.