The brick-walled moated cities located in the Irrawaddy River basin (built by Pyu, 200 BCE-900 CE) are partly-excavated sites that include citadels, burial grounds early industrial production sites and monumental brick Buddhist stupas.
In contrast to its millions of inhabitants and sprawling development, Mumbai surprisingly also has a national park located within its limits. It's worth a visit just to see the many ancient Buddhist caves, which have been hand carved into volcanic rock there. More caves, dedicated to the Hindu Lord Shiva, can also be found on Elephanta Island.
https://flic.kr/p/dx2UuK | Matheran Hill Station, Maharashtra | Louisa Point and distant hills seen from the picturesque, car-free hill station of Matheran in Maharasthra, accessed by a narrow gauge railway. en.wikipedia.org/wiki/Matheran