Rani Roopmati is situated in Mandav (also known as Mandu), its a great structure with steep steps to climb to the top. You also have a ramp built which leads to the top, which can be taken if you dont want to take the steps.
You can take a guide for a few bucks or you can explore the entire mahal by your own, its not that confusing as it may look like.
It is great if you like historic places, the view from the top is amazing, it is around 2-3 hours drive from Indore, the best way to commute is hire a taxi. do not forget to carry a your camera to click some amazing pics of you with the view.
Along the way you will also get to see Echo point, Shiva temple, Jahaz Mahal, Ram mandir, Hathi Mahal to name a few.
Its an entire one day trip with friends or family that can be planned.
The best time to visit is during winters or monsoon.