Miniatur Wunderland in Hamburg Germany is the largest model railroad in the world. Since it was opened it’s become a well known attraction in Hamburg and amongst the railfan and model railroader community. But Hamburg may be off your driven path. Well never fear, now you can travel the railroad via the Google Streetview cam.
Here’s a link to the streetview cams on the layout itself.
Streetview of the layout from the aisles.
Miniatur Wunderland’s website.
And the Miniatur Wunderland Youtube Channel.