During the day, Shanon visited Ramakrishna Mission headquarters at Belur Math where he interacted with senior monks.
He then went to the Missionaries of Charity's headquarters 'Mother House' where he paid homage to Mother Teresa's tomb and later on visited the Indian Museum.
The senior American government official was on a two-day visit to Kolkata.
Yesterday he had made a courtesy call on West Bengal Chief Minister Mamata Banerjee at her office and discussed the growing ties between US and India and the role of West Bengal in that relationship.