Which ballpark overlooks the Allegheny River and the Roberto Clemente Bridge?

Which ballpark is known for the Chavez Ravine location and a view of the San Gabriel Mountains? Which ballpark's Western Metal Supply Co. building forms part of the left-field corner? Which ballpark, opened in 1912, is the oldest in Major League Baseball? Which ballpark is the second-oldest in Major League Baseball, opened in 1914? Who won the 1990 AL MVP? Who won the 1991 AL MVP? Who won the 1993 AL MVP? Who won the 1994 AL MVP?