Christ Church, often referred to as "The Nation’s Church," played a pivotal role in the founding of the United States. This Episcopal church, founded in 1695, hosted many of the Founding Fathers, including George Washington and Benjamin Franklin. Its stunning Georgian architecture and rich history make it a must-see landmark in Philadelphia.

Best time/season to visit: Christ Church is open year-round, but spring and autumn are ideal for enjoying its beautiful gardens and surrounding historic district. Attend a Sunday service for a unique historical experience.