#1. Hang Son Doong Cave, Vietnam Hang Son Doong cave is located in Quang Binh province, Vietnam and is currently known as the largest cave in the world. It is said that the cave was discovered in 1991 by a local man named Ho Khanh, but nobody dared to explore…
The Cave City of Vardzia is a house of religious retirement, also referred to as a cave monastery, located near Aspindza, towards the southern end of Georgia. Queen Tamar founded the cave monastery in the year of 1185, back when the building was used as a protection shelter against the…