Hohlfelder has studied ancient shipwreck remains off Cyprus, Greece and Israel and 10 ancient harbors -- including the submerged town of Aperlae in present-day Turkey -- during his academic career at CU-Boulder.
The 100-acre Caesarea Harbor, the world's first port constructed in the open sea, is considered one of the most innovative and successful engineering feats of the ancient world. Framed by two artificial breakwaters and containing a lighthouse, towers and warehouses that served ships throughout the Mediterranean for more than 1,200 years, the harbor was completed about 15 B.C.
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