Heres an update on my rollercoaster project, bit late because of my printscreen problem...
I have made a crater-style landscape around the roller coaster itself. The track will wind in and out of run-down buildings in an abandoned village...

At the centre of the village will be the well that i made...

And here are a couple of images of views from inside the village. I still have more buildings and other structures to put in, but it gives you an idea...

