Two spots visited today:-
Golconda Fort is located on the outskirts of Hyderabad and was built during the reign of the Qutb Shah kings in the 16th Century. It was, in fact, a water shortage at the Fort that lead to the building of Hyderabad.
This is a very imposing group of stone structures spreading across and down a 120 metre granite hill. There are apparently concealed glazed earthen pipes that controlled the water supply - not "well" enough though (nyuk, nyuk).
Immediately within the front gate is the Grand Portico which features a diamond pattern, scalloped and domed ceiling which carries echos from that point up to the top of the Fort. It was used as a security system and is very ingenious. The various Guides on offer have you stand in a particular spot under the Portico and then clap their hands together - the resulting echos are pretty much unique I would say.
It's a very impressive pile that's for sure but the Amber Fort outside of Jaipur is even better.
A couple of kilometres away you can find the Qutb Shahi Tombs where seven of the nine kings are buried. Other notables are aso buried here but it is the kings who have the biggest tombs.
The good old Lonely Planet says "These graceful domed tombs sit serenely in landscaped gardens.....". Something must have happened since LP visited because the landscape looks more like Mars than anywhere earthly and I couldn't see anything that should be called a garden. Certainly worth visiting though.