From www.theroundhouseretreat.com:

“Our unique geodesic guesthouse is located in northeast Iowa, near Decorah, on seven acres of woods, overlooking the Upper Iowa River Valley. It is ideal for a weekend getaway or any family gathering. It is a place like no other, where you can enjoy the outdoors and the comforts of a fully furnished home.  Your stay and the Roundhouse Retreat will be a memorable experience.”