The architecture of Albany, New York, embraces a variety of architectural styles ranging from the early 18th century to the present. The city's roots date from the early 17th century and few buildings survive from that era or from the 18th and early 19th century. The completion of the Erie Canal in 1825 triggered a building boom, which continued until the Great Depression and the suburbanization of the area afterward. This accounts for much of the construction in the city's urban core along the Hudson River. Since then most construction has been largely residential, as the city spread out to its current boundaries, although there have been some large government building complexes in the modernist style, such as Empire State Plaza, which includes the Erastus Corning Tower, the tallest build