Polish archaeologists working in the receding waters of the Vistula River have discovered a significant cache of 17th-century decorative marbles and architectural elements. These artifacts were likely looted from the Royal Castle in Warsaw during the Swedish invasion known as the 'Deluge' but were lost when the transport barges sank in the river's shifting currents. The findings include ornate fireplace surrounds, column bases, and stone coats of arms that have been submerged for over 360 years.
In addition to the 17th-century finds, the extreme drought has exposed the timber foundations of lost medieval bridge piers, providing new insights into the city's historical infrastructure and trade routes. Researchers are using 3D photogrammetry to document these wooden structures before rising water levels conceal them once again, offering a rare window into the environmental history of the region.