Maybe I’ve been living under a rock, but I just found out about Scott Weaver‘s marble run sculpture of San Francisco, which he made from 100,000 toothpicks and Elmer’s glue over the course of 35 years.

This amazing piece of work is on view at  The Tinkering Studio through the end of June. Check out more photos on The Tinkering Studio’s Flickr set.

[via Colossal]