could accommodate 5,000 pilgrims, and the underground St. Andrew's Cave gallery could accommodate over 10,000 pilgrims. In the whole complex could accommodate 125,000 visitors on an area of 11 hectares, and in the piazza could accommodate 43,000 visitors. The main cathedral has 6,050 square meters (floor nave) and with stairway has 8,400 square meters. The plan of cathedral is long, width, and (ground level) height. The main building is elevated with the basement area extending to below ground level. The basement area which extending below the ground level, has 7,200 square meters. The volume of the cathedral is 323,000 cubic meters, and with the pedestal is 595,000 cubic meters. In January 2018, the Patriarchate requested portfolios with mosaics made by painters from all over Romania, throughout their careers, the winner will make the mosaic of the National Cathedral. The iconographer Daniel Codrescu won, and together with his team he started working in February. The team has about 60 people, most are top specialists in iconography and mosaic art, and a few apprentice students. They work in the workshop and on the construction site. After the iconographic scenes are made, painted, and chosen the model of the tesserae by Daniel Codrescu, the drawings are sent to the Romanian Patriarchate for approval, then part of the team makes the mosaic with millions of tesserae according to the drawings, and finally the rest of the team assembles the mosaic on wall. Along with the Palace of Parliament, the Romanian Academy, the Ministry of National Defense, the cathedral can be seen as a vertical axis or a unifying pole for these buildings in a unitary and representative urban ensemble. Also, the cathedral located on Spirea's Hill (Arsenal Square) near the Ministry of National Defense, can be considered the Cathedral of Romanian heroes of all times, who sacrificed themselves for the defense of the homeland. Mosaics of the cathedral According to the iconographic plan, the mosaics of the cathedral show the historical basis of the Orthodox Church, thus the iconography of the cathedral includes: the Church of the Apostolic Age rendered by the representation of the twelve Apostles, the Church of the Patristic Age of the holy fathers from the Greek, Syriac, Latin and Slavic Churches, and the Romanian Orthodox Church old and contemporary. In addition to the saints from the universal church, on the walls of the cathedral will be represented the great saints