Stone Bridge (Saint Petersburg)

[1] The bridge crosses the canal on the axis of Gorokhovaya Street connecting Kazansky and Spassky islands.

Unlike many other bridges, this one did not undergo major reconstruction, and therefore preserves most of its original form from the 18th century.

Initially, the bridge featured four curved stairs descending to the water, but they were removed at the end of 19th century.

However, this operation was never realized, since the conspirators were not sure that seven poods (approximately 115 kilograms) of dynamite would be enough to bring down the bridge.

The hidden dynamite was extracted from the bottom of the canal in spring of 1881, after Alexander's assassination, during the Trial of the Fourteen.