Today, we travelled to Washington DC. We took a little detour to Philly to visit the US Mint and looked at the Liberty Bell. After lunch, we continued our trip to DC. We arrived around 4:00pm, checked into our hotel rooms and left immediately. We visited the Air & Space Museum as it will open for another hour. We probably visit it again tomorrow. We drove around the National Mall but when my brother-in-law tried to park near National Momument, we lost. After driving around for...