Then: Wind-up train thrilled me as a kid.
Now: 12,000 sq ft $11,000,000 round-the-world train Wunderland boggles my brain.
This is the control station in Hamburg:
Below are two scenes from Wunderland, the dream of German twins. There are three hundred train runs daily on six miles of track which have been mostly financed by ticket sales.
UPDATE: If this is too sedate for you, watch a couple minutes of the Pan-Europe slot car finals.