published on 04 August 2013
The Arch of Janus in the forum Boarium of Rome, constructed in the 4th century CE. The four-way marble arch probably acted as a boundary marker and, perhaps not coincidentally, stands directly over the Great Drain or Cloaca Maxima which fed into the river Tiber.
Uploaded by Mark Cartwright, published on 04 August 2013 under the following license: Creative Commons: Attribution-NonCommercial-ShareAlike. This license lets others remix, tweak, and build upon this content non-commercially, as long as they credit the author and license their new creations under the identical terms.
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