Chicago, Burlington and Quincy -CBQ- Railroad Roundhouse and Shops, Aurora Illinois

Roundhouse (1859 and 1866 portions), exterior elevation facing north northeast

Roundhouse (1859 and 1866 portions), exterior elevation facing northeast

Machine shops A and B, and Roundhouse (1856 and 1859 portions) facing southeast

Blacksmith shop, rod shop, and machine shops A and B, facing northeast.

Machine shops A and B, west elevation

Blacksmith shop and rod shop, west elevations