Legend says it was built by the ancient gods; the ring fort was known as the Sun Palace and was held sacred. Traces of ancient earthworks, dating to the early Iron Age, surround the fort, enclosing an area of about 5 acres (0.02 km2). The fort itself was probably built in the early centuries of the Christian era. From the 5th to the 12th century AD it served as the royal seat of the O Neill sept of Aileach; it was destroyed by Murtogh O Brien, king of Munster in 1101. To make the demolition complete, the king ordered each of his soldiers to take away a stone from the fort. Grianan of Aileach was reconstructed by Dr Bernard of Derry in 1870, but archaeologists are doubtful about the inner restoration. Surrounding the stone fort are three concentric low walls which formed part of the original fortification of the fort.

This 15th-century castle was fully restored in 1996.

This enclosed Waterbus provides daily 90-minute tours of the area.

This popular clothing store allows customers to design their own outfits or to select from an array of ready-to-wear styles.

Situated on the Murvagh peninsula in Donegal Bay, this links course is isolated from the outside world by a forest of evergreens on one side, and the distant Bluestack Mountains on the other.

This museum outlines the cultural history of Ardara with a particular emphasis on the city's specialty, weaving.

The ruins of a Franciscan monastery founded in 1474.