clocktower but equally architecturally unique was Grand Central Station's self-supporting glass and steel train shed, , among the largest in the world at the time it was constructed. The trainshed, considered an architectural gem and a marvel of engineering long after it was built, housed six tracks and had platforms long enough to accommodate fifteen-car passenger trains. The final construction cost totaled over one million dollars. The Chicago and Northern Pacific Railroad, a subsidiary of the Northern Pacific Railway, formally opened Grand Central Station December 8, 1890. Seeking access to the Chicago railway market, the Northern Pacific had purchased Grand Central and the trackage leading to it from the Wisconsin Central with the intention of making the station its eastern terminus. When it opened, Grand Central hosted trains from the WC (which connected with its former trackage in Forest Park, Illinois), and the Minnesota and Northwestern Railroad (M&NW), which made also a connection at Forest Park. By December 1891, the tenants also included the Baltimore and Ohio Railroad, and in 1903, the Pere Marquette Railway also started using the station. Weakened by the prolonged economic downturn of the Panic of 1893, the Northern Pacific went bankrupt in October 1893, and was forced to end its ownership of the Chicago and Northern Pacific, including Grand Central Station. Ultimately, tenant railroad Baltimore and Ohio purchased the station at foreclosure in 1910 along with all the terminal trackage to form the Baltimore and Ohio Chicago Terminal Railroad (B&OCT). Services The smallest of Chicago's passenger rail terminals, Grand Central Station was a relatively quiet place, even during its heyday. Grand Central never became a prominent destination for large numbers of cross-country travelers, nor for the daily waves of commuters from the suburbs, that other Chicago terminals were. In 1912, for example, Grand Central served 3,175 passengers per day—representing only 4.5 percent of the total number for the city of Chicago—and serviced an average of 38 trains per day (including 4 B&O suburban trains). This number paled in comparison to the 146 trains served by Dearborn Station, the 191 by LaSalle Street Station, the 281 at Union Station, the 310 by the Chicago and North Western Terminal and the 373 trains per day at Central Station. The station did host some of Baltimore and Ohio's most famous passenger trains, including the Capitol Limited to Washington, D.C. Unfortunately, however, the circuitous trackage leading to the station