Ahom who rules Assam for nearly 600 years had their Capital in erstwhile Rangpur and present day Shivasagar dist. of Assam. They built some of the marvellous structures still stands tall. Largest amphitheatre Rang ghar, Kareng ghar, Talatal ghar, famous Shiva Temple with huge pond, Charaideo maidam are some of the must visit spots in Northeast India.