Birr Castle Demesne and Historical Science Centre
Birr Castle, Co. Offaly Includes one of the most amazing gardens in the country with Formal Garden and River Garden. It is a parkland with thousands of rare trees and plants collected all over the world, rivers, a lake and waterfall.
In the grounds is the Great Telescope, built by the third Earl of Rosse in the 1840s. It was the largest in the world for 70 years. The Historic Science Centre is a superb visit. It contains astronomical instruments, cameras, photographs and photographic equiptment used by the third and fourth Earls and Mary, Countess of Rosse, in the middle and late 1800s.