Look at Bruce's list of sales. Plenty to dream about.
A diversion was the engine website that Marcus? posted with all the oddball ICE, Steam and other engines invented, patented including stuff that does not really work. Fascinating. I never got round to seeing if Grandfather's 'reciprocating radial' was on it. My latest diversion into this area was looking up the Commer TS3 'knocker' supercharged reciprocating diesel engine as used in the Commer Avenger bus chassis two of which my bud has bought. From there you can check out all the layouts for steam locos, including some completely bonkers ones. Of course all that opens up double checking on youtube for live clips of surviving kit including tractors with square back wheels used to grind trenches with a girt blade on the back. Looks like its drunk when on the move.
If your really board read the Rockall chronicles about the island that used to be there. These people think its real and, yep it was high enough to be dry land in the ice age. Sadly it had a large ice lump on it which was attached to the contenants each side of the Atlantic, but other than that I am convinced this is all true!