A mosaic from one of Emperor Caligula’s ships will return to Italy after it was rediscovered in an art collector’s New York apartment, where it was being used as a coffee table. 
Italy’s “Art Squad” – a special unit of the military police charged with protecting the country’s cultural heritage – traced the long-lost mosaic to an Italian collector living on Park Avenue, US and Italian authorities announced on Friday.
The same investigation also tracked down vases, coins, bronzes and other antiquities that had been taken to the US illegally.
A section of mosaic floor excavated from the ships of Nemi. Photo via the Manhattan District Attorney’s Office.
The 2,000-year-old mosaic has not been seen publicly since the 1940s, when it was removed from the Naval Museum at Lake Nemi, south-east of Rome.
Made of green and red porphyry, serpentine and glass, it once decorated …
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