Treehouse World, West Chester

Nestled high in the trees is another world that seems almost magical, where kids can clamor across hanging bridges and make penguins jealous at Treehouse World. The creators of the canopy-side park have created this fantasy land with two massive tree houses: Greybeard's Kids Treehouse—a three-level treehouse with safety netting for walls—and the Oak Leaf Treehouse—a 40-foot long platform that spans five towering oak trees. The platform hosts play time and group gatherings, such as yoga classes and picnics. To glimpse these structures from a different angle, kids can climb a 43-foot tree with the help of rock-climbing grips and a safe belaying system, or zoom through the treetops on the ziplines.

For fun on the ground, Treehouse World also welcomes kids to try their hand at tomahawk axe throwing—with supervision, of course.