Sigiriya is a massive rock fortress located in the central Matale District of Sri Lanka. It is also known as Lion Rock due to the massive lion's paw gate that was once located at the entrance. Sigiriya was built in the 5th century AD by King Kashapa I, who made it his capital city. The fortress is known for its unique combination of ancient urban planning, hydraulic engineering, and horticulture, making it a prime example of ancient Sri Lankan civilization.

The most notable feature of Sigiriya is its palace ruins, which are located at the top of the rock. The palace was built on several levels, with walls decorated with colorful frescoes of bare-breasted women. These frescoes, also known as the "Heavenly Maidens," are considered to be one of the best-preserved examples of ancient Sri Lankan art.

In addition to the palace, Sigiriya also boasts extensive gardens and water systems, including pools and fountains, which were used for irrigation and water storage. Visitors can also see the remains of defensive structures, such as ramparts and moats, that once protected the fortress from intruders.

Sigiriya is a UNESCO World Heritage site and a popular tourist destination in Sri Lanka. It attracts visitors from around the world for its unique blend of history, architecture, and natural beauty.