Updated December 2016

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

Ahimsa House, Philadelphia

Along the Camino de Santiago, Spain (walking pilgrimage across 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

Vietnam

Motorbiking from Ho Chi Minh City to northern Vietnam along the border of China and Vietnam

Estimated trip time: 6 weeks 

You can read this post for more information.

India

Auroville, Tamil Nadu