A girl waits for the last train at the Gostiny Dvor station.

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Night-shift workers at the Nevsky Prospekt metro station.

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A worker examines tracks at the Nevsky Prospekt station.

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A worker during the examination and clean-up of the tracks at the Nevsky Prospekt station.

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A tunnel at the Nevsky Prospekt station.

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A hydraulic track lifting machine with a DINO telescopic boom on the tracks near Nevsky Prospekt station.

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A hydraulic track lifting machine with a DINO telescopic boom on the tracks near Nevsky Prospekt station.

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A hydraulic track lifting machine with a DINO telescopic boom at Nevsky Prospekt station.

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A worker of the St. Petersburg Metro examines train tracks at the Nevsky Prospekt station.

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Metro workers clean and polish marble tiles at Gostiny Dvor station.

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Metro workers clean and lap the marble facing of the Gostiny Dvor metro station.

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A metro worker polishes the marble facing at the Gostiny Dvor metro station.

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A metro worker polishes the marble facing of the Gostiny Dvor metro station.

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Metro workers polish the marble facing at the Gostiny Dvor metro station.

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A metro worker cleans the wall of a pedestrian underpass at Gostiny Dvor metro station.

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A metro worker at the Gostiny Dvor metro station before the night shift.

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St. Petersburg Metro workers wait for the night shift at the Gostiny Dvor metro station.

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Night-shift workers ride an escalator toward Gostiny Dvor metro station.

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