Motorists wishing to view one of the great wonders of mankind should turn onto 1st Street in Darwin, Minnesota, off Highway 12. It's not visible from outer space, and it's not a creation of the Ptolemaic Kingdom, but it does happen to be the world's largest twine ball rolled by one man, which surely is almost as good.
The man responsible was Francis A. Johnson, who started it in his basement in 1950 and didn't let up until 1979. Housed in a gazebo to protect it from the elements, it's been immortalized by "Weird Al" Yankovic in the song "The Biggest Ball of Twine in Minnesota." The funnyman has even been photographed with it—so take that, Great Pyramid of Giza!