Some beautiful spaces I have come across that I would recommend to others:

Ahimsa House, Philadelphia

Along the Camino de Santiago, Spain

La Casa Magica, Villatuerta

Hospital de Alma, Castrojeriz

Albergue Verde, Hospital de Obrigo

El Serbal y La Luna, Pieros

La Casa del Alquimista

Do Sol e da Lúa, Finisterre 

Visit here for more details (addresses, phone numbers, etc.) about most of the places listed above

India

Auroville, Tamil Nadu