In the center of the park near the "Voikovskaya" metro station stands a small building, little known to many, that was once a sanatorium for alcoholics, founded by doctor Alexander Mikhailovich Korovin in the late 19th century. Korovin, an experienced psychiatrist, studied alcoholism treatment abroad and decided to open his own sanatorium near Moscow, in the village of Vsekhsvyatskoye. Construction began in 1896, and the grand opening took place on April 30, 1898.

Korovin's sanatorium became one of the first in Russia. It included a main two-story building and adjacent structures on a territory of 15 desyatins (about 16 hectares). A garden in the English style was laid out around the building, with a pine grove, pond, and field nearby. The sanatorium had its own power station. On the first floor were Korovin's apartment, his office, a common hall, and a hydrotherapy room. The second floor housed 10 wards, a library, a laboratory, and a gym. Treatment lasted from 4 to 14 months depending on the severity of alcoholism and was mainly available to wealthy individuals.

In 1909, a fire occurred in the sanatorium, after which Korovin handed it over to another doctor. In 1911, the building was reconstructed and opened as a sanatorium for nervous patients under the direction of doctor A. K. Ivensen. Here, diseases of the nervous system, heart, vessels, stomach, intestines, and metabolism were treated. The sanatorium offered hydrotherapy, light therapy, electrotherapy, massage, and dietary treatment. During the Soviet era, it continued to operate under the name "Vsekhsvyatskoye," specializing in severe forms of psychoneurosis.

By the mid-1920s, the sanatorium building was equipped with central heating and ventilation. It featured a glazed veranda, wards for 2-5 people, and single rooms. The sanatorium also performed diagnostic functions, accepting patients with unclear diagnoses for further investigation. It had a hydrotherapy room, an electrotherapy office, and a biochemical laboratory, and occupational therapy was conducted.

During the Great Patriotic War, from November 1942 to December 1943, the building housed a hospital for partisans, as commemorated by a plaque. After the war, the building was repurposed as a pioneer house for the Leningrad district. In the 1990s, it fell into disrepair, but in 1999, a major renovation took place, during which the original stucco was lost. After reconstruction, the building became home to the "Voikovsky" youth center. In 1995, a sculpture titled "Victory" by A. E. Neistat was installed opposite the building, becoming a symbol of the Voikovsky district.