Jantar Mantar was a place we enjoyed visiting. It had all of the equipments of ancient period to study the time.
It was really intriguing to know the technicalities behind such huge inventions that are so accurate till date.
In this place you would need someone, a local or a guide, to tell you about how each of these huge equipments work.
Being a Delhite I wasn't expecting much from a place like JANTAR MANTAR. But this one is so different than the one in Delhi.
To my surprise there were no candle marches or people sitting on "Dharnas".
A good place to know about new things but don't forget to carry a water bottle at all times.