Pennsylvania Travel Guide

For three days in July, watch ragged “soldiers” fight the bloody Battle of Gettysburg— celebrating its 150th anniversary in 2012—with cannons and bayonets. On your way out, grab a commemorative coffee mug or baseball cap at the Civil War store.

Inspired by European coffee culture, this Philadelphia-based coffeehouse is now an international chain with locations in New York, Chicago, and Seoul.

Stylish industrial space. In addition to great cocktails, Twenty Manning serves Black Angus burgers that are among the best in Philadelphia.

Wright’s lesser-known Kentuck Knob, a whimsical wood-and-stone house, is just seven miles away from Fallingwater.

The Mystery: Deep in the woods in this 128-acre park is a large field of mysterious boulders that, when struck, sound like bells, as if they are hollow and made of metal. Each summer, hundreds of visitors flock here, hammers in hand, to perform their own "rock concerts."

Don’t miss an otherworldly underground motorboat tour beneath the stalactites in this limestone cave; or opt for the 90-minute guided excursion of the surrounding 1,500 acres to spot bison, mustangs, and even cougar.

Two-story design studio carrying everything from coffee-table books to club chairs.

Cocktail lover's wine bar

Run by people of Mennonite and Amish descent, the tour takes you through the covered bridges of the Dutch German countryside to visit noncommercial working farms.

Since 2004, this Northern Liberties-area art gallery has showcased contemporary artists who incorporate unusual materials — from found objects to 3-D installations — into their works. The bi-level space houses several exhibitions at any given time.

Recently restored by its new owners, Chick’s maintains the original pressed-tin ceiling and cherry bar, and features great classic-inspired cocktails.

Climb through “Nature’s Castles,” three large-scale treehouses designed to bring back your childhood memories and built among (although not attached to) large tulip poplars at Longwood Gardens, eight miles north in Kennett Square.