Over the course of history, the followers of every religion have travelled as pilgrims to certain revered locations that form part of their spiritual heritage. For them, the physical act of pilgrimage has served as an expression of their devotion and an outward representation of the spiritual journey on which they have embarked. Bahá’ís too undertake pilgrimage, and take the opportunity to forge a profound and lasting connection with the spiritual and administrative centre of their Faith, located in the Haifa-‘Akká area of what is now northern Israel."
- http://www.bahai.org/