The ruins of a medieval castle located on an 85 meter high hill above the village of Charaki on the east coast of Rhodes, Greece. Originally built during the Byzantine era, it was occupied by the Knights Hospitaller on September 20, 1306, becoming their first stronghold on Rhodes. Located in a picturesque location overlooking the village and coastline, it offers magnificent views of the surrounding area. Although the castle is currently in ruins, it remains an important historical landmark that attracts history enthusiasts and tourists to visit. Not only is it a historical site, but it is also a charming tourist attraction on Rhodes Island.

A historical site located in Austria. It was once mistaken for a Roman era building, but in fact, the origin of this castle can be traced back to the Middle Ages. The specific function and historical background are not yet fully understood, but as a landmark and historical site, it has significant importance for the local culture and history. Attracting numerous tourists and history enthusiasts, it is not only an important place to explore medieval architecture and history, but also a great destination for photography and outdoor activities. The combination of natural scenery and ruins around provides a unique experience, allowing people to glimpse the life and defense works of the medieval period.

The ruins of Porkuni Castle are a historical site in Estonia, located in the village of Porkuni in Parnu County. It is an ancient castle that has played an important role in defense and administration over the past few centuries. Built in the 13th century, it was initially a wooden fortress. Over time, it gradually developed into a stone fortress used to protect and control the surrounding area. Plays an important role in the history of the Baltic coastal region, having been occupied and controlled by different forces. Showcasing its former glory, although only ruins remain, it still attracts many tourists and history enthusiasts.