As the pictures below show, I used one of my last days in Thailand to visit the old capital of Ayuthaya.  It's only an hour and a half outside of Bangkok, so I took a bus there for the day.  It was incredibly hot when I arrived at 10 am, and the local tuk tuk drivers were ready for me.  After I initially refused their services when I got off the bus, one guy proceeded to follow me down the street in his vehicle, honking his horn at me, as if I would change my mind.  As usual, I preferred to walk the ruins, although it would have been better to rent a bike, I think.  Ayuthaya made the ruins in Cambodia seem practically deserted; there were enormous tour buses at every temple complex that poured out 50 or so Japanese tourists each.  It was impossible to really enjoy or contemplate the ruins with swarms of people climbing all over them.  I managed to walk to one remote temple, though, that had far fewer visitors, and the lawn was being trimmed by cows, which I thought was quite charming.  The cows were very systematic in their efforts, as if they wanted to do a thorough job of it.  I took another third class train home that evening for 15 baht, where I sat next to a grumpy looking Thai woman who was hogging 4 seats with her bags.  I think I was the only person who dared to disrupt her space because the train was completely packed other than her immediate vicinity.  I've decided, though, that third class trains are the best way to travel in Thailand if you really want to immerse yourself among a bunch of Thai people, and smell the stove fires burning in every little town (windows are open), and feel the pace of Thai life as the train lazes along, stopping every few minutes.  It's much more of an experience than 2nd class with its ice-box air conditioning, plowing through small villages at 60 km per hour, destined for the next resort town.