The "Alexandar Castle" or "Lohar Kutir" as it is locally known, is where Maharaja Surya Kanta Acharya invited Grand Duke Boris of Russia and General Sir George White, and built it for his stay and a same Russian styled also built by the Ponni of Tangail. Rabindranath Tagore also was in Alexandra castle for participating a citizen gathering. This earthquake-proof steel and timber building was built after his much vaunted "Crystal Palace" or "Rang Mahal" as it was locally known, was destroyed by the Great Bengal Earthquake of 12 June 1897. Subsequently, "Soshi Lodge" or "Mymensingh Palace" was built at the site of "Rang Mahal". However Maharaja Surya Kanta died before "Soshi Lodge" could be completed. It was completed by Maharaja Soshi Kanta Acharyya. Both the buildings had once contained innumerable works of art, artefacts, sculptures and antiques collected from all over the world. Both these buildings have been declared as National Heritage Monuments. But unplanned development already damaged the scenario of rare Russian architecture in this country.