Actually the Philly area is full of great gardens, but Longwood is recognized internationally as one of the best gardens in the world. Other gardens in the Philly area are Chanticlair, Winthurer, and Barnes foundation (also one of the most impressive single art collections that will only be shown at the mansion a few more months. I'm amazaed how one person could collect so much significant pieces, over 150 Renoir's, in additon to some of Matisse's important works, Seurat, Picasso, Van Gaugh, Cezzane, Monet along ith 100s of american artists. all set up to show how these influential artists learned from each other).
Jessica:
I forgot to mention the chime tower is know by many as the engagement tower (obvious reasons), i used to tell my daughter it was Repunzel's castle. It's fun in the winter with the lower pond turned into an ice rink. Yes the course is offered in the Spring.