The Great Northern Railway Depot Tower stands as a physical reminder of the centrality of railroads in the emergence of Spokane as a regional distribution hub during the late 19th and early 20th centuries. Construction of the depot commenced in 1901. When it was completed in 1902 it was considered the finest depot west of Chicago. Countless passengers embarked and disembarked at the depot, which served famous passenger trains like the Empire Builder. The depots clock tower was retained when the station was demolished in the early 1970s in preparation for Expo 74, the Worlds Fair that Spokane hosted in 1974. It now stands as a city landmark in the heart of Riverfront Park, the centerpiece of the city.