Ever wondered how deep it can be when going underground to take the subway? Well, Chongqing Metro in southwest China will be just so magical and eye-opening for many when you take the escalator down.

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The Hongtudi station on Line 6 of Chongqing Metro is said to be 60 meters deep and earns the designation as the deepest in the country. It is three times the depth of a standard bomb shelter. 

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Divided into four levels, it takes more than three minutes for passengers to reach the subway platform by escalator.

Locals were not surprised as they believe it’s just so Chongqing -- designs born of the hilly geography. It has drawn interest from people online who say they want to experience the impressive infrastructure some time.

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Some also joked about the possibility of a sudden blackout or escalator failure – it would take forever to walk up or down the stairs.

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Chongqing is known as a “mountain city” in China and has gained a reputation for unusual architecture in recent years. 

Chongqing has been noted for the unusual architecture that's grown out of the city's hilly terrain. Seen here is a road on top of a five-story building. CFP Photo

One of the latest “masterpieces” is a train that literally goes through a block of flats, rather than around the 19-story tower or demolishing it. Another features a road that runs on top of a five-story building.