Well, not all of old Bangkok but one little bit of it. Here's a pleasant stroll you can take if you are at a loose end and want to go a little off the tourist trail. Firstly you will need to make your way to Rommaneerart Park. I usually get here by walking up Yaowarat Road from Hualumpong station which is at the end of the underground rail system.
When I first arrived in Bangkok , Rommaneerart Park was still a prison . In converting it to a park a few of the old prison buildings were saved from demolition. One houses an interesting museum about the former prison with many old photos and information on the old Thai penal system. As you enter the park at the South East corner you pass an old watchtower guarding the entrance :
This is a nice park with a laid back feel. They sometimes have free open air concerts here of old time music. Very atmospheric. There is a fitness corner and a childrens play area as well as plenty of shaded areas to enjoy a catnap. Get here early enough and watch the local Chinese residents working through their Tai Chi routines.
Leaving the park by the South West gate and heading directly west past a row of colonial era shops you need to look for a narrow canal with a paved walk running along its side that passes behind a row of these old shops. Tricky to find but worth the trouble. This is what you will see :
This is a nice looking building but I'm not sure if its a private home or something serving a public function.
At the end of this walk you will eventually arrive at Atsadang Road facing Saranrom Royal garden. If you are feeling a bit hungry , the ' Pathe " restaurant on the corner serves good Thai and western food at reasonable prices. This is in a well restored period building and worth a visit in itself.
Crossing this bridge you can carry on into Saranrom Royal Garden.
This garden has many Thai styled buildings to admire as well as several fountains and more shaded trees to lay under and let your lunch go down
To finish off your walk you can either continue west and visit Wat Pho or head north along Atsadang Road towards Sanam Luang passing a block of stores selling musical instruments, most notably , guitars.There is also a bus from here that goes to Sukhumvit Road.