Water swirls offshore of the Trieste Marine Terminal, located on the Adriatic Sea in Trieste, Italy. Part of the larger Port of Trieste, this terminal handles containerized cargo and has steadily grown its throughput from 60 twenty-foot equivalent units (TEUs) in 2003 to more than 340 TEUs in 2019. During the 19th century, when the Austro-Hungarian Empire was one of the Great Powers of Europe, Trieste was its most important seaport.