Under Restoration "Satkhanda" , Lucknow
Satkhanda.....Outside the imambara is the watch tower called Satkhanda or tower of seven stories. Though it is called Satkhanda, it has only four stories, as the construction of the tower was abandoned when Ali Shah died. Satkhanda was built between 1837–1842 in the time of Muhammad Ali Shah.[2] He wanted to make it the same as Qutub Minar of Delhi and the leaning tower of Pisa.[citation needed] Its main purpose is lunar observation.
..........Wikipedia
Under Restoration "Satkhanda" , Lucknow
Satkhanda.....Outside the imambara is the watch tower called Satkhanda or tower of seven stories. Though it is called Satkhanda, it has only four stories, as the construction of the tower was abandoned when Ali Shah died. Satkhanda was built between 1837–1842 in the time of Muhammad Ali Shah.[2] He wanted to make it the same as Qutub Minar of Delhi and the leaning tower of Pisa.[citation needed] Its main purpose is lunar observation.
..........Wikipedia