Elliptic in shape, Terceira covers an area of 402 sq. km, is 29 km at its longest and 17.5 km at its widest. The island is a plateau, with the Serra do Cume to the east, the Serra do Labacal in the centre (rising to 808m), and the Serra da Santa Barbara (rising to 1,021m) to the west.
Angra do Heroismo, with its origins in the late 15th century, has been declared a UNESCO World Heritage Site.
