Air Mobility Command Museum
Delaware
A free, hangar-sized museum of giant Cold War and modern cargo/tanker aircraft (C-5 Galaxy, C-141 Starlifter, KC-135) parked wingtip to wingtip at an active Air Force base -- walk under planes that once ferried the nation's airlift missions, no admission charged.
Why Roamward picked it
Free + family-friendly + genuinely awe-inducing scale (giant cargo planes) makes this a strong hidden-gem pillar candidate for the US-13/Dover corridor; note for build: visitors enter via the museum's own Rt. 9 gate (not through the main base), and all adults need valid government photo ID at the checkpoint -- good copy for a trip-planning tip callout.
Sources
Hours, admission, and access change — confirm with the official source before you plan the detour.
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