Amazing holy place with a wonderful scenery.
Actually it is a Christian holy area but whatever your religion is, you will be glad with the sacred ambiance and holiness and will be able to pray personally.
Apart from that, it is a very nice and calm place to flee the busyness of the city and enjoy the wonderful view.
To visit, most tourist will take the 15-minute cable car ride up. This does have a nominal fee. Make sure to purchase a two-way or return ticket, or you may be out of luck returning on the cable car. At the top of the mountain, in addition to the site, there are a couple gift shops.