If you walk north out of my college town on main street, past the coffee shops, past the church on your right and the courthouse on your left, if you walk until you run out of sidewalk at the edge of town, and then you turn around and walk back towards the campus (but not to the edge of town yet), you will find a tree with a tiny green door near the roots. This is not significant to anything in any way at all, it’s just pretty.