tellusBuildingTellus’s home in Harvard Square stands across from the Cambridge Common and its Civil War monument. In 1835, master builder William Saunders created the stately family home, which boasts a spiral staircase of ingenious design. Steeped in the revolutionary past of its surroundings, the house harks back to basic principles of freedom and equality, whose spirit Tellus brings to bear in the struggle for a just and resilient planetary future.