The following sources were consulted in the preparation of the article “10 historical U.S. towns that feel frozen in time.”
- Cape May Historic District
- Where did the cobblestones on Main Street come from?
- Galena History
- Celebrating 125 Years of Mackinac Island’s Automobile Ban
- Harpers Ferry National Historical Park
- Virginia City Historic District, Nevada
- Eureka Springs, Arkansas
- Deadwood Historic Preservation Office
- Castillo de San Marcos National Monument
- The Asa Packer Mansion Museum