by Celia Whipple Wallace and moved to the cathedral in 1898. Services at the cathedral were hosted at the Tiffany Chapel from 1899 to 1911, and the chapel was reacquired by Tiffany in 1916. The chapel has been in the Charles Hosmer Morse Museum of American Art in Winter Park, Florida, since 1999. A subbasement below the crypt is often flooded by groundwater, potentially from springs in the area. The Leake and Watts Asylum had a well on the site of the present-day baptistery, and there was a spring near the intersection of 110th Street and Morningside Drive. As early as 1893, workers discovered that the ground under the cathedral was soft and prone to flooding. As a result, the cathedral has a concrete foundation. Sump pumps keep the area dry, and construction of the neighboring Enclave has reduced flooding. However, the spring still exists underneath the cathedral, and water from the spring may have contributed to the partial collapse of a retaining wall in 2006. Cathedral close The cathedral close, surrounding the main cathedral, consists of several buildings on a site, including the former Leake & Watts asylum building, which predates the land's acquisition by the Episcopal Diocese of New York. The other structures were built later. The former asylum is located immediately south of the crossing. The Cathedral School of St. John the Divine is located on the eastern boundary of the site, just south of the apse. A Biblical garden is located between the school and the asylum building. To the southwest is a pulpit green, situated between the nave to the north and the Synod Hall and Diocesan House to the south. The Cathedral House is located south of the Biblical garden and east of the pulpit green. The Synod Hall and Diocesan House are located on the southern boundary. Various paths, gardens, play areas, and furniture are located on the cathedral close, as are numerous artworks and several commemorative or religious objects. The initial plans for the cathedral close, put forth in the 1890s, varied widely. The included a 1892 plan for buildings on Morningside Drive and Cathedral Parkway; various proposals for an Episcopal residence somewhere along the close; and an 1898–1899 plan for a deaconesses' training school. Two other plans were proposed in 1902 and 1903, but after objections to the 1903 plan from St. Luke's Hospital, a new plan was presented in 1906.