Caretaker's House in Martsialnyje vody, Museum and protected area in Martsialnyje Vody, Russia.

The Caretaker's House is a museum and protected site in Martsialnyje Vody, a spa town in Karelia known for its natural mineral springs. The building contains exhibits about regional history, the town's development as a health resort, and the importance of mineral waters to the area.

The museum was founded in 1946 by the local teacher and ethnographer Vasily Troshin, and its first exhibition opened on 25 July 1948. It became part of the State Museum of Local Lore of the Karelian ASSR in 1955 and took the name Martsialnyje Vody Museum-Reserve in 1959. In 1993 thieves broke in through the roof and stole Petrine-era artefacts that were never recovered.

The museum's name comes from the Martsialnye Vody springs, which Peter I visited for treatment; the resort is regarded as the first Russian spa. The permanent display in the caretaker's house covers the Karelian people's part in the Great Northern War and Peter I at the springs, and the church of the Apostle Peter keeps its carved iconostasis.

The site is easy to explore on foot, with signage that helps visitors find their way around. It is good to wear comfortable shoes, since exploring the surrounding mineral springs and grounds may be part of your visit.

The museum's collection was hit by a 1993 theft: burglars cut a hole in the roof, bypassed the alarm and took Petrine-era artefacts that were never recovered. Since then the most valuable items have been kept in the National Museum of Karelia's storerooms, and about half the display consists of copies.