- tripadvisor.com Attractions-g274776-Activities-…Top Opole Castles: See reviews and photos of Castles in Opole, Poland on Tripadvisor.
- OpenTripMap.com en/card/Q1776945Piast Castle in Opole, photographed in 1925. It was demolished between 1928-30 although the tower was preserved. by Max Glauer.
- en.wikipedia.org OpoleOpole developed during the rule of duke Bolko I of Opole. The castle was finally completed around this time and new buildings...
- staypoland.com castles-and-palaces-of-the-opole-…Today, after a complex renovation, visitors can attend a multimedia exhibition about Opole’s history, the Piast Castle, and the tower itself.
- realportico.com property/neo-renaissance-castle-…The castle is located in a vast old park, 10 km from Opole, between the Odra River and the small village of Niewodniki.
- triphobo.com places/opole-poland/moszna-castleMoszna Castle Address: Zamkowa 1, 47-370 Moszna, Poland, Opole. Moszna Castle Contact Number: +48-774669679.
- tripadvisor.com.tr Attraction_Review-g1841456-…Renaissance Castle çalışma saatleri: Paz - Cts 10:00 - 17:00. ... Renaissance Castle yakınlarındaki gezilecek yerler: (13.04 km) Zoo Opole.
- medievalheritage.eu en/main-page/heritage/poland/…Opole – castle on the Ostrówek. reconstruction of the castle in the late Middle Ages, photo source Wikimedia Commons.
- http://polishcastles.eu castles/opole/opole.phpHistorical outline: Former name: Oppeln. In the past two castles existed in Opole: one was situated on Ostrówek island, and the second on so-called Górka.
- mapcarta.com W169069122Pałac w Gręboszowie is a castle in Opole Voivodeship. Pałac w Gręboszowie is situated nearby to Zespół pałacowy and Cmentarz parafialny.