Reference - As quoted by Lord Narada
There are 4 types of Tirth or Places of Pilgrimage
Manush means human, Asur means demon and Dev means heavenly gods.
Aarush Tirth is considered better than Manush Tirth. Asur Tirth is superior to Aarush Tirth and Dev Tirth is the best of all. Eg. Tirths in planes of Ganga are all Dev Tirth. They can uplift any soul comparatively more better as compared to the positive effects of other Tirths.