In the south-western part of the town of Vratsa, at the foot of the mountains, close to the River Leva, it is the Orthodox church of St. Constantine and St. Helena. For wide level yard, surrounded by a fence and low houses, stands a majestic building of the basilica. It was built in 1910-1915 gg. the project probably developed by the architect Pencho Koychevym. This is a big three-nave church with a central dome and two side bell tower above the porch, located opposite each other. At the main entrance there is a porch with arched openings. Built of stone and brick building covered in white plaster - this gives it a solemn, monumental appearance.

The church is dedicated to the two saints - Emperor Constantine and his mother, a pious Queen Helena, so it is also known as the Church of the Holy Kings.

In earlier times, this place was another church, built in the years of Ottoman rule. As demanded by the Turkish authorities, he was partially dug into the ground and was decorated with a cross. According to historical evidence, it was small in size. Therefore, after the overthrow of the faithful people of the Turks decided to destroy the temple and build a new one instead - big and beautiful, with towers, domes, crosses and bell towers, which was done.