In 2026, the United States turns 250. And while there will be parades, fireworks, and a year of official America250 programming from coast to coast, the most powerful way to mark the Semiquincentennial isn’t to watch it on a screen. It’s to drive it. This 2,500-mile road trip is built like a timeline you can steer. It starts where the Revolution ignited, runs through the rooms where the country was argued into existence, passes the battlefield where independence was won, and ends in the Alabama towns where Americans fought to make the promises of 1776 real for everyone. Two and a half centuries, one tank at a time. Here’s how to plan it. Stop 1: Boston, Massachusetts (The Spark) Every American story starts somewhere, and this one starts on the Freedom Trail.…