Connects house dwellers (and their backyards) with adventurous campers. More than half of the garden listings are in Europe; the remainder are sprinkled throughout the rest of the world. There’s a robust facilities search filter if you’re looking for gardens that have Wi-Fi or public transportation nearby, allow dogs or provide hot water and other amenities. Not all the listings I was interested in had photos, so that omission hindered my search process. Be aware that there could be cynical listings such as the one I found for camping in the heart of Los Angeles’ skid row.