Jod Gumbaz is a complex of two tombs located in Bijapur ... it contains the tombs of Khan Muhammad and his spiritual advisor Abdul Razzaq Qadiri ... Khan Muhammad "the traitor" was a military commander in service of the Adil Shahis, and had been bribed into switching allegiances in favour of the Mughals ... The tomb of Abdul Razzaq Qadiri, who was Khan Muhammad's spiritual advisor was also built around the same time ... A smaller mausoleum located towards the west of the Jod Gumbaz is the burial place of Sidi Rehan    wiki 

About 400 yards to the east of Mecca Gate, are two domes, which on account of their close proximity and likeness to each other are called Jod-Gumbaz. The floors of both the tombs are at a very considerable elevation above the surrounding ground level, being built upon the ground rather than beneath its surface, as is the case in most of the tombs.  source 

I've been told that even though the two monuments are quite near each other they have been placed such that the shadow of one never falls on the other.

This,  the  largest  tank  in  Bijapur,is  situated in  the  west  of  the  town  near  the  Makka  gate.  The  entrance to  the  tank,  facing  the  north,  is  spanned  by  a  high  arch 35  feet  across.  Upon  either  side  of  this,  and  standing  forward, is  a  two-storeyed  octagonal  tower  surmounted  by  a  dome. East  and  west  of  these  run  long  arcades  which  were  intended for  the  accommodation  of  travelers.  

From : Bijapur : A  Guide  To  Its  Ruins  With  Historical  Outline by Henry  Cousens (1889)

It's not possible to get to this gate, AFAIK. There are structures (encroachments ?) all around it. I could only view it from the road through a locked gate.