Alopi Devi Mandir is located at Alopibagh, near the holy sangam of rivers Ganga, Yamuna, and the legendary Saraswati.
Kumbh Mela takes place near this place. The temple do not have any statue or idol of any deity, but a wooden carriage or 'doli' is being worshiped here.
Web : http://en.wikipedia.org/wiki/Alopi_Devi_Mandir