In architecture the capital or chapiter forms the topmost member of a column. It mediates between the column and the load thrusting down upon it, broadening the area of the column's supporting surface. The capital, projecting on each side as it rises to support the abacus, joins the usually square abacus and the usually circular shaft of the column. The capital may be convex, as in the Doric order; concave, as in the inverted bell of the Corinthian order; or scrolling out, as in the Ionic order. These form the three principal types on which all capitals in the classical tradition are based. The Composite order established in the 16th century on a hint from the Arch of Titus, adds Ionic volutes to Corinthian acanthus leaves.

Yererouk, also Yereruyk or Ererouk, is an ancient Armenian church near the village of Anipemza in the Shirak Province of Armenia. Yererouk was built on a plateau near the Akhurian River, which defines the frontier with Turkey, about 5 km southeast of the ancient city of Ani.