Birtha (Mesopotamia) bastions are quite traceable. There are the ruins of a vaulted secret staircase, leading down from the heart of the citadel to the water's edge. Birtha (Mesopotamia) Birtha () was an ancient fortress on the river Tigris, which was said to have been built by Alexander the Great. It would seem, from the description of Ammianus, to have resembled a modern fortification, flanked by bastions, and with its approaches defended by out-works. Shapur II here closed his campaign in 360, and was compelled to retire with considerable loss. D'Anville and Edward Gibbon both identify Birtha as modern-day Tikrit, Iraq. The
Detroit Country Day School projection equipment, allowing for the production of all forms of performing art, including films and lectures. However, due to building height restrictions in the Village of Beverly Hills, the PAC lacks a fly system. The PAC has housed Off Broadway shows such as "The Stoop on Orchard Street" and is the home venue for the Chamber Music Society of Detroit (). The PAC is frequently used for school assemblies and two major school productions, typically one drama and one musical per year. Detroit Country Day School Detroit Country Day School (also known as DCD, DCDS, or Country Day) is a