The clock tower is all that remains of the Great Northern Train Station which was demolished in the early 1970s in preparation for Expo ‘74. The train depot itself was completed in 1902 and 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 clock tower now stands as a city landmark in the heart of Riverfront Park, the centerpiece of the city.