The Old Fort Niagara State Historic Site preserves Fort Niagara, founded in 1726. The majority of structures on site date from the 18th and 19th centuries. The fort is strategically located at the mouth of the Niagara River. As a result, it was crucial to deciding American dominance in the Great Lakes Region, as opposed to control by the French or British. Both the British and French controlled either the fort itself or the site of the fort at various points of time. Soldiers lived and trained on site for both World Wars. The fort also shaped the history of the Iroquois. Collections include more than 102,000 artifacts.

The site offers period rooms, student programs, guided tours for students, school overnight programs, school outreach programs, and school distance learning programs. The website offers a virtual tour.