Streets running north to south between the east/west Fayette, Baltimore, Lombard and Pratt Streets. This concept was in the days before additional commercial and residential development had moved east and south across the Falls and began butting up against the tightly packed alley-streets with small brick and a few wooden rowhouses and restaurants of "Old Town" (renamed of colonial Jones Town), "Little Italy" (in the renamed southern portion of old colonial "Jones Town") and the future "Harbor East" of high-rise hotels, office and apartment skyscrapers developed in the 1990s, followed by "Harbor Point" to the southeast on the small heavily polluted soil of the peninsula jutting into the Inner Harbor, formerly the site of a large ugly Allied-Signal chrome manufacturing/refining works since the Issac and Jesse Tyson and Brian Philpot beginnings in the 1840s. Here leading further north above East Baltimore Street to the streets where the original Falls were covered over by the newly constructed "Fallsway" and the sometimes flood-prone stream was diverted underground into three great concrete water tunnels during a flood-control public works project in 1912-13-14. Further north at Pennsylvania Station, used by various railway lines, the Falls emerges again at Mount Royal Avenue in a somewhat natural setting with small trees and shrubs surrounding its course with occasional concrete culverts continuing north out of the city, past the old stone / brick mills, raceways, culverts and dams of valley villages of Hampden and Woodberry, Mount Washington to the old Lake Roland public water reservoir of 1860 and its dam and further north to the Pennsylvania state line. In the early 1980s in the Pratt Street Power Plant, Six Flags (corporation, owner/operator of amusement/theme parks from Texas) developed a Victorian-era indoor theme park, featuring an imaginary turn-of-the-century explorer/scientist/raconteur named "Phineas Flagg" (modeled after famous author Jules Verne's literary world traveler character in the science fiction/adventure novel "Around The World in Eighty Days", published 1873). Later in the decade, Six Flags expanded their downtown/Inner Harbor interests three blocks north to construct "The Brokerage" complex in the middle of the north end of Market Place bordering East Baltimore Street, on the eastern edge of downtown. This was adjacent to the Jones Falls west bank, and the new Shot Tower/Market Place station for the new "Metro" (subway). Across the Falls further east, was the new re-routing of the President Street Boulevard (running from the southern terminus of the Jones Falls