(Empire Builder Business Park) - 23-27 Empire Drive - Built in 1882, the shops and the people who worked in them did every aspect of work imaginable for locomotives, freight and passenger rail cars for what became the Great Northern Railway.…

(Jackson Street Roundhouse) - Jackson Street and Pennsylvania Avenue - The roundhouse dates from 1907. It is the second roundhouse in that area. The first was built in 1882, just to the west of the current structure. It is one of the few…