Amongst all the Buddhist caves located at Uperkot, the most popular are the ones to the North West of Jami Masjid. This group of caves is constructed in three tiers. Two stories have regular floors while the upper tier is marked by the presence of a large tank. This tank is covered on three side by balconies and Kakshasana on the north-west and western sides. The ground floor presents several exquisitely carved pillars with prominent ground bases, shafts and crown in place.

Source:

http://en.wikipedia.org/wiki/Junagadh_Buddhist_Cave_Groups

http://www.discoveredindia.com/gujarat/attractions/caves/buddhist-caves-in-gujarat.htm