This document provides an overview of Sigiriya, an ancient rock fortress in Sri Lanka built by King Kashyapa in the 5th century AD. It describes the major sites within Sigiriya, including the upper palace on top of the rock, the Lion Gate and mirror wall with frescoes on a mid-level terrace, and the lower palace and gardens extending hundreds of meters from the base. The document outlines the frescoes, gardens divided into water, cave and boulder, and terraced sections, and important structures like the Lion's mouth entrance and polished mirror wall. It concludes with a brief history of archaeological work conducted at Sigiriya.