The Tbilisi underground was built by the Soviet USSR and opened in 1966. It is very deep underground at up to 60m to serve a secondary function as a bomb shelter. It is clean, with really inexpensive fares of 36 cents USD per ride. We loaded up a MetroMoney card pass for a month for $14.23 USD per person, which includes travel on all the buses in the city as well. A very clean, safe and economical way to get around Tbilisi.
The Tbilisi Metro (Georgian: თბილისის მეტროპოლიტენი, romanized: tbilisis met'rop'olit'eni) is a rapid transit system in the Georgian capital Tbilisi. Opened on 11 January 1966, it was the fourth metro system in the former Soviet Union. Like other ex-Soviet metros, most of the stations are very deep and vividly decorated.