A quote from from the Nectar of Devotion:

It is stated in the Puranas, "Persons who attempt to visit the holy places of pilgrimage, like Vrindavana, Mathura or Dvaraka, are actually glorified. By such traveling activities, they can pass over the desert of material existence."

In the Hari-bhakti-sudhodaya there is a statement about the benefit of visiting the temples of Lord Krishna. As we have explained previously, in Vrindavana, Mathura and Dvaraka the system is that all the devotees take advantage of visiting various temples situated in those holy places. [...]In order to make an escape from this material condition, one is advised to visit a temple of Vishnu with devotional consciousness. Then one can very easily get out of the miserable condition of material birth.