New Athos Subway is an underground electric railroad in the New Athos Cave

New Athos Cave

The New Athos Cave ; ) also Novoafonskaya, Novy Afon Cave, or New Afon Cave is a karst cave in the Iverian Mountain, Georgia near New Athos. It is one of the largest caves in the world with the volume of its void of about 1,000,000 m3....

, Abkhazia

Abkhazia

Abkhazia is a disputed political entity on the eastern coast of the Black Sea and the south-western flank of the Caucasus.Abkhazia considers itself an independent state, called the Republic of Abkhazia or Apsny...

, Georgia

Georgia (country)

Georgia is a sovereign state in the Caucasus region of Eurasia. Located at the crossroads of Western Asia and Eastern Europe, it is bounded to the west by the Black Sea, to the north by Russia, to the southwest by Turkey, to the south by Armenia, and to the southeast by Azerbaijan. The capital of...

. It was opened in 1975. It has length of 1.3 kilometre (0.807784557644749 mi) and 3 stations. The train "Turist" was built at RVR

Rigas Vagonbuves Rupnica

Originally named Phoenix, Rīgas Vagonbūves Rūpnīca was founded in 1895 by the businessman Oscar Freywirth and is one of the largest machine-building plants in Latvia. RVR is based in Riga and was for many years the largest producer of electric and diesel trains and also tramcars in the former...

 wagon plant (Riga

Riga

Riga is the capital and largest city of Latvia. With 702,891 inhabitants Riga is the largest city of the Baltic states, one of the largest cities in Northern Europe and home to more than one third of Latvia's population. The city is an important seaport and a major industrial, commercial,...

) and has six wagons five of which are usable by passengers (90 passengers overall). It uses gauge

Rail gauge

Track gauge or rail gauge is the distance between the inner sides of the heads of the two load bearing rails that make up a single railway line. Sixty percent of the world's railways use a standard gauge of . Wider gauges are called broad gauge; smaller gauges, narrow gauge. Break-of-gauge refers...

. There are two trains of which only one is currently in use and was reconstructed in 2005 in Moscow

Moscow

Moscow is the capital, the most populous city, and the most populous federal subject of Russia. The city is a major political, economic, cultural, scientific, religious, financial, educational, and transportation centre of Russia and the continent...

.