Here in the Pacific Northwest, we emerge from winter with a fair number of trees blown down, especially shallow-rooted Douglas firs, and soft-wood trees like Alders. Clearing for construction results in still more stumps. The makers of our local stumpery thought it would be a good way to recycle this material, rather than seeing them chipped or burned.
The gardeners have created a 9,000 square foot garden, filled with fantastical piles of gnarled roots, interplanted with magnificent Tasmanian tree ferns, thousands of ferns, hostas, trilliums, terrestrial orchids, and over 100 different epimediums. It's truly an otherworldly place, and will only grow more so over the years as things develop a coat of moss and lichen.