Image: AP Photo/Darko Vojinovic A century-old shipwreck has resurfaced from the Sava River in Serbia as an intense drought leaves waterways across Europe at exceptionally low levels. The rusting remains of the Slovenian, a steam tugboat built in 1913, emerged near the Serbian town of Sremska Mitrovica earlier in August, revealing far more of the vessel than locals have seen in years. Serbian media have nicknamed the wreck “Sava’s Titanic”, turning an environmental warning into an unexpected historical spectacle. Historian Andrija Popovic, head of the town museum, told CBS News that there had been considerable local interest because the wreck...