This is the deepest subway station in the world.

In general, underground subway lines do not have to be built many meters below the surface. However, when the relief of a city has particular characteristics - such as the presence of riverbeds and marshes - the alternative found by the engineers is to descend increasingly towards the center of the earth. This is the case of the capital of Ukraine, Kiev, which houses the deepest subway station in the world.

Called Arselna, the terminal opened in 1960 - a time when Ukraine was one of the republics of the former Soviet Union - is no less than 105.5 meters deep. To get to the embarkation, passengers take an incredible 5 minutes and have to go down two flights of escalators that never seem to end.

The place is one of 50 stations in the Kiev metro system, which transports 1.4 million people daily on its 63.7 kilometers long. For some network users, the station's architecture, rather than diminishing the sensation of vertigo, only enhances it - as it reminds them that above their heads are tons of land and water.

The second deepest subway station in the world is located in the Russian city of St. Petersburg, which, like the capital of Ukraine, has particularities in the ground that prevent the construction of the line near the surface. It is 86 meters deep and began operating in 1987.