महातीर्थ mahātīrth

महान्, महा mahān, mahā (sanskrit)

(prefix) Great, illustrious.
Mighty, strong, big, large, ample, excessive, grievous.
Very, extremely, very much.

तीर्थ tīrth (sanskrit)

A bathing place, a shrine or sacred place of pilgrimage (as Benares, &c.; especially particular spots along the course of sacred streams, as the Ganges, &c.). Pilgrimage.