Massa and Carrara, near the city of Carrara, in the region of Tuscany, Italy. Carrara marble is a type of marble popular for use in building decor. The marble from Carrara was used for some of the most remarkable buildings in Ancient Rome, such as Pantheon, and other notable construction such as Siena Cathedral, Legislative Palace of Uruguay, Glasgow City Chambers, Finlandia Hall, Akshardham (New Delhi) etc. The National Cathedral has 27 bronze doors with iconographic representations. Some bronze doors are 2.7 meters width with 5 meters height, and other bronze doors are 2.7 meters width with 6.35 meters height at the arch. A single door has 4 tons. These are coordinated by a computer system that command the automatic opening of the doors in case of alarm. The doors were made at Süßen by Strassacker. The same company also made the bronze crosses on the towers. Initially, six companies from Austria and six companies from Germany were contacted and finally the company from Süßen was chosen. The bas-reliefs of the saints are life-size. Over 50 saints are represented on the doors of the cathedral. At the entrance on the main doors is the Mother of God and the Savior Jesus Christ. On the doors are represented martyrs, hierarchs, including over twenty Romanian saints. In 2017, Patriarch Daniel said that, the cathedral belongs to all Romanian saints, from all parts of the country. The People's Salvation Cathedral has a total of 396 windows that were made in Belgium by the company Reynaers, treated electrochemically by anodizing, and assembled in Ploiești. The largest window of the cathedral, stained glass window at the entrance with the scene of the Ascension of Christ has 90 square meters and it cost 200,000 euros. Apses (Nave) and Arces In 2022 the Nativity of Jesus scene was completed in the southern apse. Among the scenes painted in mosaic on the medium and superior tiers of this apse are: the Visitation, Adoration of the magi, Joseph’s dream, flight into Egypt, massacre of the Innocents, census of Quirinius, presentation of Jesus at the temple, wedding at Cana and Jesus blessing the children. They are all related to the theme of family. The vaulted nave reaches an inner height at the arches supporting the dome of 40.35 meters. The triumphal arch between the altar and nave includes the iconographic representation of twelve Old Testament Prophets, the venerable Melchizedek, along