America's oldest house and garden tour is coming up on 100 years, and it’s very much showing its age – the age of the homes, gardens and public buildings that were built in the Greater Wilmington area during colonial times, gave shelter to patriots at the birth of our nation and then again as stops on the Underground Railroad, and have withstood the tests of time to the present day. The town of historic New Castle, Delaware celebrates that rich history with re-enactments, encampments, period children’s games and more throughout the day in May.