Took a bus to Weymouth, resisting the typical seaside allure. Instead, I walked to Nothe Fort, a large 19th-century fortification built to protect against a French invasion. It served during both World Wars and the Cold War, even housing a nuclear bunker in the 1980s. Weymouth played a significant role 80 years ago on D-Day, serving as an embarkation point for American troops heading to Omaha Beach.