The Plaza Nueva (New Square) of Bilbao is a monumental square of Neoclassical style built in 1821.
The square is enclosed by arcaded buildings and accessed by arches known as cuevas (caves).
The main building was the site of the Biscay government, until a new palace was built in 1890. The place is now the site of Euskaltzaindia, the Basque language Royal Academy.