The "Carbon Dioxide Baths of Narzan" complex was built in 1903 to commemorate the centenary of Kislovodsk. It was located on the right bank of the Olkhovka River, in the city center, on Poplar Alley, now known as Resort Boulevard, next to the Business Courtyard, whose workshops participated in the construction. There was a small Narzan lake here. The design was entrusted to civil engineer Andrei Nikolayevich Klepin. He created a project for a two-story building: on the lower floor were the Narzan baths and pools, while on the upper floor were massage rooms, saunas, fresh showers of various types for hydrotherapy, as well as a special massage bath "Wellenbad" with artificial wave formation, where a stream of hot water flowed from a special opening in the wall.

It was planned that the building would encourage people to use the waters even in winter.

Materials for construction were brought from all over the country: bricks from Pyatigorsk, cement from the Black Sea factories "Tsep" and "Zvezda", as well as from Rostov-on-Don, Armavir, and Donetsk. Tiles came from the Sazonov glass factory, wood from Tsaritsyn from the Maksimov firm, and the sculptures were made by Ludwig Karlovich Shodkiy.

Construction lasted from 1901 to 1903 and cost 393 thousand tsarist rubles. Part of the funds was invested by Emir Said Abdulkhad-khan of Bukhara, who was treated in Kislovodsk in 1903.

After the revolution, by 1920, the Klepin family emigrated through Constantinople to the Serbian settlement of Bor, where the architect built a church, the Sokolskiy house, and a hospital. In his later years, he moved to his daughter's home in the suburbs of Paris and died in 1954 in the locality of Malkoff.

The Klepin family was friends with the family of Marina Tsvetaeva. Her husband, S. Ya. Efron, helped the Klepins return to their homeland, where they were accused of espionage in favor of France and executed in July 1941.