If you have not been there yet, Calleta Station is a place you should visit one day. Sure some modern mesh builds would look far superior but it is the overal sim design of Calleta and the surrounding sims that give it it's special charm. It was once the proud gathering place of the now rare SL-hobos, a subculture based on the ideals on tinkering and helping others. It is also one of the central nodes of the SLRR network on Heterocea so grab one of those free trains (available at the station or get yourself some other SLRR compatible trains from MP) and give SL railroading a try.
If you are lucky, you might even run into some of the last remaining hobos when they are around, I ran into a few and had some nice chats there.
http://maps.secondlife.com/secondlife/Calleta/181/166/31