Venetsa Cave near Vidin, Bulgaria. Beautiful colorful and illuminated cave full with semiprecious onyx stones. Flowstones, stalactites and stalagmites lighted in different vivid colours.
Dodurga Keloglan cave
Prometheus ( Kumistavi) Cave near Tskaltubo in the Imereti region, Georgia
PROMETHEUS CAVE, GEORGIA - MARCH 20: Prometheus cave near Tskaltubo, Georgia on July 24, 2015. It is one of Georgia's natural wonders with many breathtaking examples of stalactites, stalagmites.
Beautiful light up of limestone cave interior at Guilin Silver Caves.