Back on topic: Somebody mentioned the Philly area of Pennsylvania, but let me cover the state in general. I grew up near Philadelphia but part of my family lives in the western half of the state, which is actually a pretty big state.
If you travel about an hour west of Philly you find yourself in an area populated by a lot of German-speaking Amish and Mennonite people. Pennsylvania is by no means the only state with an Amish population, but it probably has the biggest. The center of this population is Lancaster County. These folks are religious pacifists who, as much as possible, live a simple, low-tech lifestyle, with reduced dependence on electricity, motor vehicles, and so on. They work farms using human and animal muscle, they are known to be very hard workers and shrewd at handling their monetary affairs. Many local Philly-area contracters hire them to do carpentry and construction, and people travel from far away to buy Amish-made furniture. They speak a wierd dialect of German; I don't even speak German but listening to them speak I can tell they are not from Germany. It sounds like, well, "rural".
Outside of the urban areas, Pennsylvania is a "bible belt" state, the rural population is very religious.
Pennsylvania is also a "rust belt" state, meaning it was once an industrial giant and now has lots of shrinking former industrial towns, unemployment, and closed factories, refineries, and steel plants. Steel was once a major industry in Pennsylvania, especially in Pittsburgh. That industry all but disappeared in the 1970s. The site of the world's first commercial oil well is also in the mountains of Pennsylvania at Titusville. For over a century Pennzoil, Quaker State, and other oil companies were mainstays in Pennsylvania. Most of that is gone, too, and the huge refinery complexes along the Delaware River are also in danger of closing. Coal mining was once huge, too, as was railroading.
Skiing is popular in the Pocono mountains for New Yorkers and Philadelphians, but to the west the mountains become very rural. The state has lots of state forests, state parks, and state game lands, so there are vast areas of wilderness. One of my favorite things to do is to hike the back woods looking for artifacts of old railroad grades, closed mines, and even the sites of former oil boom towns that are now ghost towns. In some places only a few stone foundations remain of once vibrant towns, now totally grown over by vegetation. Ancient rusted piplines and oil storage tanks can be found in the deep woods, along with the occasional operating oil pump jack, usually owned and run by a local oil driller whose family has been in the business for decades.
Pittsburgh has gone a long way to reinventing itself and emerge from the decayed rust belt image, but the surrounding area has not. If you are a photographer, the industrial ruins are great subjects. Other, smaller rust belt towns like Johnstown are rather depressing with the economic decay. Erie, on the other hand, still has some heavy industry, including the General Electric rail locomotive factory and a port for Great Lakes shipping.
It's a very big state, and you can live your whole life there and not have time to explore it all. And that's just one state!