Church of Boris and Gleb was built in 1152, on the orders of Prince Yuri Dolgoruky. It was probably part of the princely (wooden) palace complex, but was only used by Dolgorukii for a few years before he left to become Grand Prince of Kiev in 1155. The village, four kilometers east of Suzdal, was an important town before it was destroyed by the Mongols and declined in stature.
The church, built in limestone probably by architects from Galicia, is a four-piered, three-apse church. It is one of the oldest in the district and one of the few churches built by Dolgorukii that is still extant. It retains fragments of frescoes dating back to the twelfth century. In the medieval period it was the site of a monastery and was then a parish church. The building has been significantly altered over the centuries. It lost its original vaulting and dome (the current roof and small dome date to the 17th century) and the apses are thought to be half their original height (their tops too were lost with the roof); a porch was added in the 19th century.
The church is a part of a UNESCO World Heritage Site 'White Monuments of Vladimir and Suzdal' along with the seven other medieval monuments located in Vladimir and its surroundings, and belongs to the monuments of the Golden Ring of Russia.
The church, along with other structures built around it in later centuries - namely the St. Stephen's Church and bell-tower) appears on a three-ruble silver commemorative coin struck by the St. Petersburg Mint in 2002.References:
Considered to be one of the most imposing Roman ruins, Diocletian’s palace is certainly the main attraction of the city of Split. The ruins of palace, built between the late 3rd and the early 4th centuries A.D., can be found throughout the city. Today the remains of the palace are part of the historic core of Split, which in 1979 was listed by UNESCO as a World Heritage Site.
While it is referred to as a 'palace' because of its intended use as the retirement residence of Diocletian, the term can be misleading as the structure is massive and more resembles a large fortress: about half of it was for Diocletian's personal use, and the rest housed the military garrison.
The palace has a form of an irregular rectangle with numerous towers on the western, northern, and eastern facades.