The Old Pike -- The National Road -- Early Routes Across the
Mountains -- Old Lancaster Road -- Columbia Railroad -- The
Pennsylvania Route -- Haverford College -- Villa Nova -- Bryn
Mawr College -- Paoli -- General Wayne -- The Chester Valley --
Pequea Valley -- The Conestogas -- Lancaster -- Franklin and
Marshall College -- James Buchanan -- Thaddeus Stevens --
Conewago Hills -- Susquehanna River -- Columbia -- The
Underground Railroad -- Middletown -- Lochiel -- Simon Cameron
-- The Clan Cameron -- Harrisburg -- Charles Dickens and the
Camel's Back Bridge -- John Harris -- Lincoln's Midnight Ride
-- Cumberland Valley -- Carlisle -- Indian School -- Dickinson
College -- The Whisky Insurrection -- Tom the Tinker -- Lebanon
Valley -- Cornwall Ore Banks -- Otsego Lake -- Cooperstown --
James Fenimore Cooper -- Richfield Springs -- Cherry Valley --
Sharon Springs -- Howe's Cave -- Binghamton -- Northumberland
-- Williamsport -- Sunbury -- Fort Augusta -- The Dauphin Gap
-- Duncannon -- Duncan's Island -- Juniata River -- Tuscarora
Gap -- The Grasshopper War -- Mifflin -- Lewistown Narrows --
Kishicoquillas Valley -- Logan -- Jack's Narrows -- Huntingdon
-- The Standing Stone -- Bedford -- Morrison's Cove -- The
Sinking Spring -- Brainerd, the Missionary -- Tyrone --
Bellefonte -- Altoona -- Hollidaysburg -- The Portage Railroad
-- Blair's Gap -- The Horse Shoe -- Kittanning Point -- Thomas
Blair and Michael Maguire -- Loretto -- Prince Gallitzin --
Ebensburg -- Cresson Springs -- The Conemaugh River -- South
Fork -- Johnstown -- The Great Flood -- Laurel Ridge --
Packsaddle Narrows -- Chestnut Ridge -- Kiskiminetas River --
Loyalhanna Creek -- Fort Ligonier -- Great Bear Cave --
Hannastown -- General Arthur St. Clair -- Greensburg --
Braddock's Defeat -- Pittsburg, the Iron City -- Monongahela
River -- Allegheny River -- Ohio River -- Fort Duquesne --
Fort Pitt -- View from Mount Washington -- Pittsburg Buildings
-- Great Factories -- Andrew Carnegie -- George Westinghouse,
Jr. -- Allegheny Park and Monument -- Coal and Coke -- Davis
Island Dam -- Youghiogheny River -- Connellsville -- Natural
Gas -- Murrysville -- Petroleum -- Canonsburg -- Washington --
Petroleum Development -- Kittanning -- Modoc Oil District --
Fort Venango -- Oil City -- Pithole City -- Oil Creek --
Titusville -- Corry -- Decadence of Oil-Fields.