Almost as good as the Paris sewer tour

The just-unveiled RTAMS site is at

http://www.rtams.org

and it definitely is worth a visit.

You will need to register, but it is free and open to the public.

Make sure to play around with the features of the interactive map -- and check out the various "layers" that are available.

If you're into signalized intersections, you'll be in hog heaven.