A decades-old unresolved bank heist

On December 19, 1992, robbers drilled holes in the basement wall of what was then an Ergasias Bank branch in central Athens - even though it was reinforced with steel - opened hundreds of safes and removed valuables, cash and bonds worth billions of drachmas, or millions of euros today. 

The alarm was activated, but the patrol car that rushed to the scene found nothing. Decades later, in November 2020, surveyor engineer Dimitris Theodosopoulos identified the entrance that the perpetrators had built.

It had been covered. He remembers, however, that at the time there was a hole through which he could see the tunnel. On Wednesday, a part of the road surface of Kallirrois Street gave way. 

Theodosopoulos along with Giorgos Kafantaris were at the time members of a group of speleologists who were urban explorers.

The tunnel started from a hole in the left...