Tibidabo is a mountain overlooking Barcelona. At 512 meters it is the tallest mountain in the Serra de Collserola. Rising sharply to the north-west, it affords spectacular views over the city and the surrounding coastline. There is an amusement park, a telecommunications tower (Torre de Collserola), and a Catholic church, the Temple de Sagrat Cor, at the top, all of which are visible from most of the city.