Trg M. Plenčiča 9
About Solkan ( open in new tab – Wikipedia )
Solkan railway bridge
For the main arch, they needed 4533 exactly fitted stones of limestone.
The bridge arch span of 85 meters or 279 ft,it is the longest stone bridge in the world and the longest stone bridge among train bridges.
( from ritebook.in )
About Slovenija ( link to Official Travel Guide )