Palaces had multiple entrances that used post-and-lintel entrances rather than corbel vaulting. A bay window supported by a corbel, bracket or similar is called an oriel window. The well-preserved Hellenistic Eleutherna Bridge has a triangular corbel arch. The corbel arch is structurally weaker than the true arch. A smaller arched corbel is located below these openings. The stone corbel arch bridge is still used by the local populace. The Great Pyramid of Giza uses corbel arches at the Grand Gallery. These domes are not true domes, but are constructed using the corbel arch. The rooms were connected to each other with carved Gothic corbel doors. The mosque corridors are filled with corbel arches that extend to both ends. Each of these bases consists of a pile of five roll-moulded corbel courses. Sites modified corbel vaulting to allow thinner walls and multiple access doors to temples. A corbel or console are types of brackets. Turrets were traditionally supported by a corbel. Cantilevers are widely found in construction, notably in cantilever bridges and balconies (see corbel).