The St. Hilarion Castle built initially as a strategic fort is thought to be named after a saint who escaped from Jerusalem after the Arab conquests and moved to Cyprus where he lived and died in a cave on top of the mountains.

In the 10th century a church and a monastery were built at the site. During the Lusignian period the monastery was turned into a castle and it became the summer resort of the Lusignian nobility.

It has three section

• Lower Section – The Lower section of St. Hilarion Castle was used for the soldiers and the horses.
• Middle Section – The Middle section of St. Hilarion Castle contained the royal palace, the kitchen, the church and a big cistern.
• Upper Section – In the Upper section of St. Hilarion Castle there is a Lusignian Gate and there is a courtyard in the middle.

The nobility used to live in the Eastern section, the kitchen and the other rooms for daily use were in the western section.