Step 1: The Sanchi Stupa, situated in Sanchi, Madhya Pradesh, near Bhopal, stands as one of India's oldest stone constructions.
Step 2: This prominent Buddhist monument and UNESCO World Heritage Site was erected by Emperor Ashoka. Other stupas mentioned, such as Nagarjunakonda in Andhra Pradesh and Amaravati in the Krishna district, are found in different Indian locales.