The Huntington Bank Building is a high-rise office building on Euclid Avenue in downtown Cleveland, Ohio. When the building was completed in 1924, it was the second largest building in the world in terms of floor space, with more than 30 acres of floor space. It also included the world's largest bank lobby, which today remains among the largest in the world. The lobby features enormous marble Corinthian columns, barrel vaulted ceilings, and colorful murals by Jules Guerin.