Famous Pilgrimage Tirupati, Vaishnodevi, Shirdi, Haridwar, Amarnath, Ajmer Sharif, Amritsar are most famous pilgrimage of India. Orissa temples are very popular two.
Yamunotri, Gangotri, Kedarnath & Badrinath represent the four destinations one must reach.
South India has pilgrimage and temples every where. In South India every person name is generally on a Hindu God's name. You can imagine the impact of Lord, temples on every one's life.