Ljubljana Cathedral, also named St. Nicholas' Cathedral, was originally a Gothic church. In the early 18th century, it was replaced by a Baroque building. It is an easily recognizable landmark of the city with its green dome and twin towers and stands at Cyril and Methodius Square by the nearby Ljubljana Central Market and Town Hall.
The site was originally occupied by an aisled three-nave Romanesque church, the oldest mention of which dates from 1262. It was a succursal church of the ancient Parish of Saint Peter. An extensive fire in 1361 saw it refurbished in the Gothic style but underwent alterations when the Diocese of Ljubljana was established in 1461 and the church became a cathedral. However, in 1469 it was burnt down again. This time, it was suspected to be arson, presumably by the Turks.
In 1700 the Capuchin friar Florentianus Ponnensis from Milan or Bologna designed a new Baroque hall church. The following year, after the construction already started, the plan was revised and complemented by the Jesuit architect Andrea Pozzo who designed it as a basilica and added to it a dome. He did not supervise the realisation of his plan, so the buildings was significantly adapted by the builders, in particular by Francesco Bombassi of Venice. The two belfries, resembling of the Salzburg Cathedral, were added upon the plan by Lombard Giulio Quaglio.
The construction took place between 1701 and 1706. The first worship took place in the new building in August 1706, and the consecration took place on 8 May 1707. Originally, a fake dome was painted on the arch above the centre until the church's real dome was constructed in 1841.
Inside much of the original Baroque decor remains with frescoes painted by Giulio Quaglio between 1703–1706 and later 1721–1723. Other notable decorations in the cathedral include the altar angels by the brothers Paolo and Giuseppe Groppelli on the right part of the nave (1711) and by Francesco Robba on the left (1745–1750). Angelo Putti was assigned to much of the artwork, with his painting of Thalnitscher (1715) and the statues of the four bishops of Emona seated under the dome beam (1712–1713). The dome was painted by Matevž Langus in 1843–44. The fresco in the cupola depicts the Holy Spirit and angels, whereas the frescos on the walls of the dome depict the coronation of the Virgin and the glorification of Saint Nicholas, surrounded by angels and saints. In the 1950s, the architect Jože Plečnik made plans for new church furnishings.References:
The Porta Nigra (Latin for black gate) is the largest Roman city gate north of the Alps. It is designated as part of the Roman Monuments, Cathedral of St. Peter and Church of Our Lady in Trier UNESCO World Heritage Site. The name Porta Nigra originated in the Middle Ages due to the darkened colour of its stone; the original Roman name has not been preserved. Locals commonly refer to the Porta Nigra simply as Porta.
The Porta Nigra was built in grey sandstone between 186 and 200 AD. The original gate consisted of two four-storied towers, projecting as near semicircles on the outer side. A narrow courtyard separated the two gate openings on either side. For unknown reasons, however, the construction of the gate remained unfinished. For example, the stones at the northern (outer) side of the gate were never abraded, and the protruding stones would have made it impossible to install movable gates. Nonetheless, the gate was used for several centuries until the end of the Roman era in Trier.
In Roman times, the Porta Nigra was part of a system of four city gates, one of which stood at each side of the roughly rectangular Roman city. The Porta Nigra guarded the northern entry to the Roman city, while the Porta Alba (White Gate) was built in the east, the Porta Media (Middle Gate) in the south, and the Porta Inclyta (Famous Gate) in the west, next to the Roman bridge across the Moselle. The gates stood at the ends of the two main streets of the Roman Trier, one of which led north-south and the other east-west. Of these gates, only the Porta Nigra still exists today.
In the early Middle Ages the Roman city gates were no longer used for their original function and their stones were taken and reused for other buildings. Also iron and lead braces were broken out of the walls of the Porta Nigra for reuse. Traces of this destruction are still clearly visible on the north side of the gate.
After 1028, the Greek monk Simeon lived as a hermit in the ruins of the Porta Nigra. After his death (1035) and sanctification, the Simeonstift monastery was built next to the Porta Nigra to honor him. Saving it from further destruction, the Porta Nigra was transformed into a church: The inner court of the gate was roofed and intermediate ceilings were inserted. The two middle storeys of the former gate were converted into church naves: the upper storey being for the monks and the lower storey for the general public. The ground floor with the large gates was sealed, and a large outside staircase was constructed alongside the south side (the town side) of the gate, up to the lower storey of the church. A small staircase led further up to the upper storey. The church rooms were accessible through former windows of the western tower of the Porta Nigra that were enlarged to become entrance doors (still visible today). The top floor of the western tower was used as church tower, the eastern tower was leveled, and an apse added at its east side. An additional gate - the much smaller Simeon Gate - was built adjacent to the East side of the Porta Nigra and served as a city gate in medieval times.
In 1802 Napoleon Bonaparte dissolved the church in the Porta Nigra and the monastery beside it, along with the vast majority of Trier"s numerous churches and monasteries. On his visit to Trier in 1804, Napoleon ordered that the Porta Nigra be converted back to its Roman form. Only the apse was kept; but the eastern tower was not rebuilt to its original height. Local legend has it that Napoleon originally wanted to completely tear down the church, but locals convinced him that the church had actually been a Gaulish festival hall before being turned into a church. Another version of the story is that they told him about its Roman origins, persuading him to convert the gate back to its original form.
In 1986 the Porta Nigra was designated a World Heritage Site, along with other Roman monuments in Trier and its surroundings. The modern appearance of the Porta Nigra goes back almost unchanged to the reconstruction ordered by Napoleon. At the south side of the Porta Nigra, remains of Roman columns line the last 100 m of the street leading to the gate. Positioned where they had stood in Roman times, they give a slight impression of the aspect of the original Roman street that was lined with colonnades. The Porta Nigra, including the upper floors, is open to visitors.