They call it 'the City of Brotherly Love', and they are not mistaken (in fact, it's the literal meaning of Philadelphia in Greek). I was there 2 weeks ago and, before my trip, I remember reading the adds in the guides and maps saying something like "hello, future Philly lover", and thinking they were exaggerating. I guess I was wrong, because now, after being there for one week, I declare myself a true Philadelphia lover.
Some of my friends give me a weird look when I say this, but I couldn't help comparing Philadelphia to my home in Mexico, Morelia. Both cities are important in the history of their countries, both have something to do with the independence, they have culture all around and they still keep that special charm from the past in their buildings.
So let's get to some historical facts, shall we? Philadelphia was founded in 1682 by William Penn and 70 years later, it became the most important British port in America. Home of Benjamin Franklin, Thomas Jefferson, John Adams and George Washington, the city is mostly known because it was the place where the Founding Fathers discussed and signed the Declaration of Independence in 1776 and the Constitution of the United States in 1787. Also, it was the Capital of USA for 10 years before it was moved to Washington DC in 1800 (by the way, in those days the yellow fever was killing a lot of people, but nobody knew that it was caused by a mosquito bite, so they just decided to flee the city).
So, you can tell that the city is filled with interesting places to see and things to do for every taste. You can dive into history in the old city, see famous art pieces in the Museum of Art (and the famous stairs from the movie Rocky), take a stroll by the Schuylkill river, see a show in one of the many theaters of Broad street, visit the first penitentiary or even go on a tour to hear all about spooky legends and ghost stories (there are lots of them).
On top of all, there is one thing that I felt while visiting Philly: the people who live there are very nice. Everywhere there was someone who would ask us where we were from and immediately welcomed us with a warm smile (for the record, I've always felt good and welcomed while visiting the US, but this time there was something else). To sum up, I strongly recommend everyone to visit Philly, I can assure that you won't regret planning your next vacation to this amazing and beautiful city.
Source: my personal experience. Pics taken by Lilirog.