The Pontiac Transportation Museum in Pontiac, Michigan, opened just two years ago, but inside, visitors will find a history that stretches from the carriage era to the vehicles that helped move America.Terry Connolly, board chair of the Pontiac Transportation Museum, said the city's legacy in transportation is unmatched."In the teens and 20s, Pontiac was arguably the Silicon Valley of the whole United States," Connolly said. "The manufacturing t…