Seeing the biggest steam engine in the US = happiness!
When I tell you this train was big... I am not exaggerating. This is the biggest steam engine in the US. This was one of 25 Big Boy's and was used to haul heavy freight across the US. It was built in 1941. Standing next to it, I felt tiny! It has 4-8-8-4- wheel arrangement and weighs over 1.2 million pounds!
There are only eight remaning trains of this classification. Oh, and did I mention this guy could do almost 80 mph?