The ethnic minorities of northeast Cambodia, like the Tompuon people at Kachon village, bury their dead in some rather elaborate graves in the forest. The concrete tombs can have fences, wooden elephant tusks, thatched roof and the entrance is guarded by carved statues of the deceased (man and wife are buried at the same place) - some with very explicit genitals. The cranium of the buffalo that got sacrificed during the burial ceremony hangs at the front and the family of the deceased often places things that the dead can use in afterlife like bottles, pots, local whiskey, yes even sunglasses. Be sensitive when visiting a tribal cemetery, so you don't offend the locals nor the spirits.
Similar cemeteries can also be seen near Kon Tum in Vietnam.