Jahan Kosha is an ancient site that features a cannon built by Janardhan Karmakar. Constructed in 17th century by the craftsmen from Bangladesh, the canon is 17.5 ft long. Along with the canon, there is a beautiful mosque, known as Kadam Sharif. The mosque is believed to have footprints of a sage; Hazrat Mohammad.
Kadamsarif, Murshidabad, West Bengal 742149, India