Location: Builth Wells, Wales
Cost: From $165 per night
If you really like nothing, boy do we have the spot for you.
This treehouse tent in the middle of the forest is rigged up like a woodland villain's layer but filled with rustic amenities. A log-burning stove and a double bed that converts into a couch are the more spare elements, but a desk with a power outlet for devices, dimmable lighting, a flush toilet, sink, and gas-powered shower all make this more of a hotel in the trees.
As for the activities, you're not going to be just popping into the city. London is four hours away and Manchester's about three. That makes for a lovely field of stars above as you sit around the streamside firepit, but it also means you have to rely on a foraging course, a falconry or rented bike and a ride into the town of Rhayader for kicks.