They say God works in mysterious ways -- and if you look at the things these three men have created in their backyards, a result, each says, of divine inspiration, it seems mysterious indeed.

John Hudgens recently visited Horace Burgess' massive treehouse in Crossville, Tennessee -- he writes, "He says that God told him "If you build me a treehouse, I'll see that you never run out of material." And so Horace started building... and building... and 15 years later, he's still going. The treehouse is now 97 feet tall, supported by a living 80-foor tall white oak, with six other oaks for support. It currently has ten floors, and a belltower." John took the picture below and many more, which are fascinating.

In Bishopville, South Carolina, there's a man by the name of Pearl, who without any horticultural training whatsoever, took a garden center's throw-away scraps and, over the course of many years, created a three-acre garden of topiary sculptures that has earned him recognition from major publications all over the country and put his small town on the map. There's even a documentary about him:

Perhaps the most well-known of all, though, is the backyard of Leonard Knight, an artist living in the desert near the Salton Sea. I visited his amazing creation, which he calls Salvation Mountain, last year, and brought along my camera. Check out the whole article here.