Katedrala svetega Nikolaja (St. Nicholas Cathedral) is a prominent Catholic cathedral located in the heart of Ljubljana, the capital city of Slovenia. It is also known as Ljubljana Cathedral or Stolnica in Slovene.

The construction of the cathedral began in the early 18th century, replacing a previous church that stood on the same site. The Baroque-style cathedral was designed by the Italian architect Andrea Pozzo and was completed in 1706. However, it underwent further renovations and modifications over the years.

The exterior of St. Nicholas Cathedral features a stunning green dome, which is one of the most recognizable symbols of Ljubljana's skyline. The facade is adorned with elaborate sculptures and intricate details, showcasing the grandeur of the Baroque architectural style. Inside, visitors can admire beautiful frescoes, altars, and statues that enhance the overall ornate interior.

The cathedral holds great religious significance for the Catholic community in Ljubljana and serves as the seat of the Archbishop of Ljubljana. It is not only a place of worship but also a significant cultural and historical landmark in the city.

Visitors to St. Nicholas Cathedral can attend Mass, explore the interior, and appreciate the religious art and architecture. The cathedral is open to the public, and entrance is generally free, although donations are appreciated to support the maintenance and preservation of the building.

The location of the cathedral in the city center makes it easily accessible, and it is often included in guided tours of Ljubljana's historical sites. It is also a popular destination for tourists and locals alike, offering a serene and contemplative atmosphere within the bustling cityscape