Tskaltubo was a russian prestige city with castle-like hotels and mineral water sanatoriums all over the city. Plenty of parks, wide tree lined roads, and statues and monuments everywhere.
When Georgia was liberated in 2001 and the russian tourists disapeared, there was no longer money or need to maintain the beautiful buildings, and most of them were abandoned.
Some of them have been brought up to standard again and the tourists are slowly returning, but there are still plenty of buildings that have not been used or worked on since 1991.