Peter and Paul Fortress Carillon (i believe it was a rehearsal). I randomly walked into the sound of the bells and made a recording directly under the cathedral on the empty night square. 

UNESCO listing: Historic Centre of Saint Petersburg and Related Groups of Monuments

Recorded by Masha Sha.

IMAGE: Alex 'Florstein' Fedorov, CC BY-SA 4.0 <https://creativecommons.org/licenses/by-sa/4.0>, via Wikimedia Commons

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This sound is part of the Sonic Heritage project, exploring the sounds of the world’s most famous sights.

Find out more and explore the whole project: https://www.citiesandmemory.com/heritage