The Limestone Trail (Romania) is formed by a 150 km routes network located in the Central part of the Trascãu Mountain, in Transylvania. The trail is developed on three parallel valleys and offers the possibility to visit 15 natural reservations, proposed to be included into a Natura 2000 site and within the future Trascãu-Muntele Mare Natural Park. Well known mainly due to the Rîmetului Gorges, the Central part of the Trascãu is remarkable through a high number of natural reservations, through old traditional houses and through more then 250 years old churches. The trail is starting from the city of Teius, situated at 80 km South from Cluj Napoca. From this point we left the European road to enter on the "Geoagiului Trail". In Teius we can visit the Catholic Church, founded by Iancu de Hunedoara, built at 1443.