Gaya

As per Kurma Purana it is said that

1. all forefathers appreciate a pilgrimage to Gaya by their successors. 
2. Once Pinda daana is performed one achieves salvation and becomes free of rebirth. 
3. If one visits Gaya even once and offers Pinda daanathe forefathers becomes free from hell and other dreadful destinations and achieve salvation.

http://ancestorancestor.blogspot.com/2013/05/gaya-place-dedicated-to-ancestors.html

Supporting The World

https://en.wikipedia.org/wiki/World_Turtle
https://www.google.com/search?site=imghp&tbm=isch&source=hp&biw=1280&bih=599&q=4+elephants+on+the+back+of+a+turtle

Human