Duke N. Leuchtenberg seems to have been moved to the Northern city from the warm shores of the Mediterranean. In its architectural details, it seems that the sea foam, the curves of the waves, the lace of algae have frozen. Sea maidens in dresses fluttering in the wind frame the arch of the main entrance, swollen with an inflated white sail. And above all, at the level of the upper floor, it sinks in the sky, merges with it a huge mosaic landscape: fields and hills, city pipes of factories, a marine pier with sailing ships, and a mosaic sky that turns into the sky over St. Petersburg.

This creation belongs to the young Russian architect Fedor von Postels, who started at that time. He made the building in the then fashionable Art Nouveau style. And its project has remained a masterpiece for centuries. This author has not created anything like this after. There are no analogues to the mosaic panel by artist S. T. Silk, reminiscent of impressionist canvases. The technology of its implementation was also innovative for those years. These are large uneven pieces of smalt, made in the workshop of the famous Russian mosaic artist V. A. Frolov, the one who made the mosaic for the Church of the Savior on Spilled Blood and many other cathedrals.

The customer was the Russian prince Duke N. Leuchtenberg, a descendant of the royal family. This is one of his tenement houses, that is, intended for renting out housing. The upper floor, with semicircular glazed triangular balconies dividing the panels into five parts, was intended for the studios of artists whom the Duke had always patronized. The architectural masterpiece throughout the twentieth century remained out of the attention of the authorities and slowly collapsed. Only in 2007, the facade of the building was restored. And its interior and courtyard continue to be in disrepair.

In April 2019, N. Leuchtenberg was recognized as a regional monument. Now the building is an apartment building.