A membership at one participating history museum unlocks benefits at 511 others across 45 states. The catch worth knowing: the benefit varies per museum — free admission at many, a discount or shop benefit at some — so the network's own advice is to confirm with the host museum before visiting. Roster pulled from the official directory 2026-09-05.
A reciprocal membership plus a free-day calendar covers most trips: see free museum days in Chicago, New York, Los Angeles — or the full free-days index.
↥ Check another membership → Browse all reciprocity guides →
A free reciprocal network for history museums and historical societies, run by the Missouri Historical Society since 1998 — 511 US institutions across 45 states participate.
It varies by institution — free admission at many, discounted admission or gift-shop discounts at others. Each museum sets its own benefit, so confirm with the museum you plan to visit before you go; our lookup lists the participants near you.
You don't join directly — you get it by being a paying member of any participating institution. Check your history museum's membership page for the Time Travelers logo.