Tlacolula de Matamoros
The caves and rock shelters vary in size and what they contain. Many contain paintings and other forms of graphic representation. Contents include ceramics and stone tools. The corn materials show similarities to the first vestiges of the domestication of wheat and rye in the Middle East. One of the deepest caves is called the Cueva de la Paloma. The caves have been studied since the 1960s, especially the Cueva de Guilá Naquitz (white stone in Zapotec), which has some of the best evidence for the domestication of corn and squash, which dates back more than 10,000 years. Other caves, such as those near Yagual and Mitla confirm findings at Guilá Naquitz and show human occupation to about 8000 years BCE the sites also show similarities to the Head Smashed and Buffalo Jump Complex sites in Canada. Many more smaller caves with similar artifacts are thought to exist in the area.
Siddha cave
Siddha Cave or Siddha Gufa is a cave located in Bimalnagar, Tanahu District, Nepal. It is the largest cave in Nepal and second largest cave in South Asia. It's around 0.5 kilometer inside and around 2500 people can feet inside. If you would like to go over Siddha Cave then you have to vehicle from Kathmandu on Prithvi Highway which will take around 4 hours to Bimalnagar, then you have to walk up hills on steps. It will take around 1.5 hours from Bimalnagar to reach to Cave.