Why go
Tskaltubo is Georgia's most haunting time capsule: a 1950s Soviet radon-cure resort where workers came to heal in palatial sanatoriums built from Stalinist neoclassical to brutalist modernism. The mineral springs, discovered in ancient times and scientifically validated in the 19th century, drew 125,000 annual visitors at peak. When the USSR collapsed, so did the system—leaving dozens of grand buildings to decay, their marble halls, colonnades, and mosaic-tiled pools now inhabited by a few remaining pensioners and adventurous travelers. The nearby Prometheus Cave offers a theatrical counterpoint: a 1.4km illuminated underground world of stalactites and subterranean rivers, discovered in 1984 and developed with Soviet ambition. Together they form an unparalleled diptych of Georgia's Soviet heritage—one crumbling, one curated, both surreal.