Update:
Gizmodo: Google Used Tiny Cameras to Street View the World’s Largest Model Railway. “Brace yourself for perhaps the cutest views ever to appear on Street View. Google has scaled down its hardware to capture Hamburg’s Miniatur Wunderland—the world’s largest model railway.”

Hamburg’s Miniatur Wunderland (deutsch: Miniatur-Wunderland) is “[t]he largest model railway in the world, and one of the most successful permanent exhibitions in Northern Germany.” Take a look at their official video to get an idea of this great project. There even is a section called America aka “The United States of Wunderland” complete with Grand Canyon, Las Vegas, Mount Rushmore and Cape Canaveral.

I attended a guided tour behind the scenes a few years ago shortly before they opened the airport, and it was fascinating.

If Hamburg is too far from where you live you can now visit Miniatur Wunderland virtually via Google Maps! Here’s America.

Links via MetaFilter, where it was featured twice before.