Architecturally diverse and ideologically staunch, Soviet sanatoriums were intended to edify and invigorate Visiting a Soviet sanatorium is like stepping back in time.
Originally built in the 1920s, they afforded workers a place to holiday, courtesy of a state-funded voucher system.
At their peak they were visited by millions of citizens across the USSR every year.
A combination of medical institution and spa, the era's sanatoriums are among the most innovative building.