Places
- Oswegatchie River (N.Y.)1
- Overflakkee (Netherlands)1
- Panama (Panama)1
- Panama--History.1
- Panama.1
- Pennsylvania--Colonial period, ca. 1600-1775.1
- Pensacola (Fla.)--History--Siege, 1781.1
- Perth Amboy (N.J.)1
- Peru--History.1
- Pisa (Italy)1
- Placentia Bay (N.L.)1
- Poland--History.1
- Pompeii (Extinct city)1
- Portugal--History.1
- Puerto Rico.1
- Queensboro Bridge (New York, N.Y.)1
- Québec (Québec)--History--French and Indian War, 1755-1763.1
- Redstone (Pa.)1
- Reims (France)1
- Rhode Island--History--Revolution, 1775-1783.1