- vici.org image.php?id=1296Image used in. Porta Gemina - Pula. Vici.org partners: Livius.org: articles on ancient history Rijksmuseum van Oudheden.
- wikidata.org wiki/Q126302932nd-century Roman city gate in Pula, Croatia. edit. Statements. instance of. city gate. 0 references. image. Pola Porta Gemine 1900.jpg3,477 × 2,607; 3.19 MB.
- romeartlover.it Pola.htmlPorta Gemina is a double-arched gateway which formerly admitted to the square interior of a bastion, beyond which a single archway opened to the town.
- flickr.com photos/rudi_valtiner/53279160694Under Pula, which was the most important war port for the Imperial Hungarian-Austrian Empire, there is a whole underworld of tunnels running practically through...
- classicalmonuments.tumblr.com post/156929801651/…Porta Gemina or Twin gates were built in the end of the 2nd century on the remains on older Roman gates, and their main role was to serve as an entrance to the...
- robertharding.com preview/816-2264/twin-gates-…...www.robertharding.com/licenses-explained/https://www.robertharding.com/preview/816-2264/twin-gates-porta-gemina-pula-istria-croatia-europe/.
- lillagreen.com travel-guide-to-pula-croatia/The so-called Porta Gemina, also known as the Twin Gates or Dvoina Vrata is a double arched gate, built at the end of 2nd century AD by the Romans.
- dorindavid.net tag/porta-gemina/Un alt monument care trebuie căutat, găsit și văzut este Porta Gemina
- marinetraffic.com en/ais/details/ports/1282…