The Sangi Mosque in Gorakhpur was built during the reign of Mughal Emperor Jahangir in 1618 AD. Historian Dr. Danpal Singh mentions in his book "Gorakhpur-Parikshetra Ka Itihas" that the mosque was constructed during Afzal Khan's governance, who was a high-ranking officer in the Mughal Empire . Some key features of the mosque include: - *Unique Acoustics*: The mosque's architecture is designed in such a way that voices from inside cannot be heard from the outside, but whispers from the outside can be heard clearly inside. - *Earthquake-Resistant*: The mosque has withstood several earthquakes, including the 2016 Nepal earthquake, without sustaining any damage. - *Capacity*: The mosque can accommodate up to 600 people for prayer. - *Architecture*: The mosque features three large domes, with intricate carvings and calligraphy adorning the walls and ceilings. The Sangi Mosque is a significant historical landmark in Gorakhpur and showcases the architectural expertise of the Mughal era.