Philadelphia is the largest city in Pennsylvania. It has deep roots ... The historic district houses several of the city’s famous landmarks, including Independence Hall, the Liberty Bell ...

In 2013, the Pennsylvania Department of General Services ... condo buildings and famous landmarks, including the Shedd Aquarium, O’Hare International Airport and Loyola University.

The USA is home to over 2,600 national historic landmarks, with almost 25% located in Pennsylvania, Massachusetts, and New York. Three cities, namely Philadelphia, Boston, and New York City each ...

The American Chemical Society designated the development by Samuel Kier of the first still for refining crude oil as a National Historic Chemical Landmark in a ceremony in Pittsburgh, Pennsylvania, on ...

The cemetery was without care prior to the Beth David Reform Congregation taking over ownership in 1999, and it is now a historic landmark in Lower Merion. Since 2017, gravestone conservator Joe ...