1. Moon mechanism and exterior
The cathedral is preserved in its original 18th century form. The silhouette of the church in one of the corners of the Unirii Square attracts you even from a distance and urges you to approach it. The dominant architectural style is late Baroque with elements of Byzantine art.
The mechanism that moves the moon is unique in Europe. The moon, half gold, half black, is operated by a mechanism designed and made by Georg Rueppe in 1793, which indicates the phases of the moon. It is located in the cathedral tower.