The Chorinth channel, built in the 19th century, but both planned and begun several times in antiquity.
This is a late 1st or early 2nd century AD fresco from the Fountain of Peirene in the Corinthian Agora. Compare it to this fresco and mosaic in Rome.
Fish from the same location as the picture above, the fountain is absolutely amazing.
A Roman man in armour, ca 125-150 AD.
The temple of Apollo at the Corinthian Agora.