in February 1915. He obtained a studio in NYC and there employed the services of model Audrey Munson who posed for him – Star Maiden (1913–1915) – and a host of other artists. For the exposition, Calder completed three massive sculpture groups, The Nations of the East and The Nations of the West, which crowned triumphal arches, and a fountain group, The Fountain of Energy. Following Bitter's sudden death in April 1915, Calder completed the Depew Memorial Fountain (1915–1919) in Indianapolis, Indiana. Hermon Atkins MacNeil and Calder were commissioned to create larger-than-life-size sculptures for the Washington Square Arch in New York City. George Washington as Commander-in-Chief, Accompanied by Fame and Valor (1914–1916) was sculpted by MacNeil; and George Washington as President, Accompanied by Wisdom and Justice (1917–18) by Calder. These are sometimes referred to as Washington at War and Washington at Peace. He sculpted a number of ornamental works for "Vizcaya", the James Deering estate outside Miami, Florida. These included the famous Italian Barge (1917–1919), a stone folly in the shape of a boat, projecting into Biscayne Bay. Two of his major commissions of the 1920s were the Swann Memorial Fountain (1920–1924) in Logan Circle, and the architectural sculpture program for the University of Pennsylvania Museum of Archaeology and Anthropology (completed 1931), both in Philadelphia. He was one of a dozen sculptors invited to compete in Oklahoma's Pioneer Woman statue competition in 1926–27, which was won by Bryant Baker. In 1927, he was also commissioned by the Berkshire Museum to sculpt the woodwork and fountain of the Museum's Ellen Crane Memorial Room in Pittsfield, Massachusetts. In 1929, he won the national competition for a monumental statue of Leif Eriksson, to be the gift of the United States to Iceland in commemoration of the 1000th anniversary of the Icelandic Parliament. Standing before the Hallgrímskirkja, the Lutheran cathedral in Reykjavík, and facing west toward the Atlantic Ocean and Greenland, the Leif Eriksson Memorial (1929–1932) has become as iconic for Icelanders as the Statue of Liberty is for Americans. Teacher Throughout his career, Calder frequently worked as a teacher. He was instructor in modeling at the Pennsylvania Museum School of Industrial Art from 1899 to 1904. He taught at the National Academy of Design's evening school, 1910–11, and alongside Hermon Atkins MacNeil at NAD, 1911–12. He taught modeling at the Art Students League of New York, 1918–22. He was never on PAFA's faculty,