St. Alexander Nevsky Cathedral is one of Sofia’s most iconic landmarks, featuring an impressive dome, golden mosaics, and rich history. Built in the early 20th century, the cathedral is a striking example of Byzantine Revival architecture, making it one of Bulgaria’s most significant and stunning religious sites. With its towering presence and serene atmosphere, it’s an essential stop for those wanting to explore Sofia’s orthodox Christian heritage. Visitors can admire the cathedral’s grandeur, explore its crypt housing a museum with relics of Bulgaria's past, and enjoy the surrounding Alexander Nevsky Square. The cathedral's location in the heart of Sofia ensures that it’s accessible while still offering a tranquil experience for those seeking spiritual or historical enrichment.