Unlike other ancient cities of the Adriatic, the Old Town of Herceg Novi is not surrounded by defensive walls and is not a single architectural ensemble built simultaneously in one style. It is a combination of several architectural monuments that reflect different historical eras and are made in different architectural styles. It even looks harmonious next to the modern town quarters surrounded by high-rise buildings. Throughout its history, Herceg Novi has been a thriving town ruled by many great empires, each of which made adjustments to its image.

The Sultan of the Ottoman Empire Mehmed IV ordered to build the Sat Kula clock tower, which still adorns an old square in the town's historic center. This outstanding monument of Ottoman architecture is not the only tower in the Old Town. There is another defensive construction, the Western Tower, not far from it. To the east, there is the Tower of St. Jerome, built in the 17th century in honor of the hero-liberator Jerome Korner. Today, it regularly hosts performances of the town orchestra.

The center of the Old Town is occupied by the main square of Duke (Herceg) Stefan Vukic, who gave the name to the entire town of Herceg Novi. The square is dominated by the Orthodox Church of St. Archangel Michael, one of the most beautiful churches in Montenegro. This delightful monument of the mid-19th-century temple architecture stands among huge palm trees in front of the unique old fountain. The marble fountain Karacha has decorated the picturesque square since the time of the Ottoman Empire. It combines both features of the Romanesque and Gothic styles, as well as elements of Byzantine and Ottoman architecture.

From Stefan Vukic Square, the road goes down to the sea, where you can find another temple, the Church of St. Jerome. Once, this Orthodox shrine was a Muslim mosque. After the fall of the Ottoman Empire, it was rebuilt into a church and its walls were decorated with frescoes by the famous Baroque artist Tripo Kokol.