Scotland’s Incredible Garden of Cosmic Speculation

[I]t is based on mathematics and science mixed with nature and man-made lakes. Built in 1989, it has been called by some the most important garden in the 21st century. It is a private garden built by Charles Jencks and his late wife Maggie in Portrack House, Dumfries, Scotland.

OK, some of the “science” is, um, on the thin side. But there are still some pretty neat things.