Hersheypark (known as Hershey Park until 1970) is a family theme park situated in Derry Township, Pennsylvania, United States. Founded in 1906 by Milton S. Hershey, as a leisure park for the employees of the Hershey Chocolate Company, as of 2013, the park is wholly and privately owned by Hershey Entertainment & Resorts Company. The park has won several awards, including the IAAPA Applause Award.
The park opened its first roller coaster in 1923, the The Wild Cat, an early Philadelphia Toboggan Company coaster. In 1970, Hershey Park began a redevelopment plan which made the park into the new Hersheypark. The 1970s brought the first looping roller coaster on the East Coast, as well as a 330 foot tall observation tower, the Kissing Tower. Beginning in the mid-1980s, the park rapidly expanded. Between 1991 and 2008, the park added eight roller coasters and a water park. As of 2011, the park's area covers over 110 acres (45 ha), containing over 60 rides and attractions. Adjacent is Hershey's Chocolate World, a visitors center that is open to the public and that contains shops, restaurants, and a chocolate factory-themed ride.

Valley Forge in Pennsylvania was the site of the military camp of the American Continental Army over the winter of 1777–1778 during the American Revolutionary War. It is approximately 20 miles northwest of Philadelphia. Starvation, disease, and exposure killed nearly 2,500 American soldiers by the end of February 1778.

Philadelphia is the largest city in the Commonwealth of Pennsylvania, the second largest city on the East Coast of the United States, and the fifth-most-populous city in the United States. It is located in the Northeastern United States at the confluence of the Delaware and Schuylkill rivers, and it is the only consolidated city-county in Pennsylvania. As of the 2013 Census, the city had a population 1,553,165. Philadelphia is the economic and cultural center of the Delaware Valley, home to over 6 million people and the country's sixth-largest metropolitan area. Popular nicknames for Philadelphia are Philly and The City of Brotherly Love, the latter of which comes from the literal meaning of the city's name in Greek

Deep Creek Lake State Park is a Maryland state park in Garrett County. The park surrounds Deep Creek Lake, a reservoir that was created with the construction of the Deep Creek Dam in 1923 by the Pennsylvania Electric Company on a tributary of the Youghiogheny River. In 2000, the state of Maryland purchased the land underlying the lake and buffer zone properties for $17 million.

The United States National Arboretum is an arboretum in Washington, D.C., operated by the United States Department of Agriculture's Agricultural Research Service as a division of the Henry A. Wallace Beltsville Agricultural Research Center. It was established in 1927 by an act of Congress after a campaign by USDA Chief Botanist Frederick Vernon Coville.
It is 446 acres (1.80 km2) in size, and is located 2.2 miles (3.5 km) northeast of the Capitol building. Nine miles of roadways wind through and connect the numerous gardens and collections on the campus.
The arboretum functions as a major center of botanical research. It conducts wide-ranging basic and developmental research on trees, shrubs, turf, and floral plants. It has a library with 10,000 volumes and approximately 90 publications concentrating in botanical literature.