First National Plaza (Chase Tower)

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The building first opened in 1969 as First National Plaza. When constructed, it was the headquarters of First Chicago Corporation. In 1998, it became the headquarters for Bank One Corporation, and accordingly it was renamed Bank One TowerChase Tower is known for both its distinctive curving shape and its vibrant public space: a deep sunken plaza at the geographic center of the Chicago Loop, complete with a jet fountain and Marc Chagall's ceramic wall mural Four Seasons