10 most difficult castles riddles

The Palace of the Grand Master of the Knights of Rhodes also known as the Kastello, is a medieval castle in the city of Rhodes, on the island of Rhodes in Greece. It is one of the few examples of Gothic architecture in Greece. The site was previously a citadel of the Knights Hospitaller that functioned as a palace, headquarters, and a fortress.

Castel del Monte is a 13th-century citadel and castle situated on a hill in Andria in the Apulia region of southeast Italy. It was built during the 1240s by the Emperor Frederick II, who had inherited the lands from his mother Constance of Sicily.

Othello Castle also known as Othello's Tower, is a castle in Famagusta, Cyprus. It was built by the Lusignans in the 14th century, and was later modified by the Venetians. The castle was named after a Venetian governor in 1506.

Petrovaradin Fortress, nicknamed "Gibraltar on/of the Danube" is a fortress in the town of Petrovaradin, itself part of the City of Novi Sad, Serbia. It is located on the right bank of the Danube river. The cornerstone of the present-day southern part of the fortress was laid on 18 October 1692 by Charles Eugène de Croÿ.

The Tabqa Dam is an earthen dam on the Euphrates, located 40 kilometres (25 mi) upstream from the city of Raqqa in Raqqa Governorate, Syria. The dam is 60 metres (200 ft) high and 4.5 kilometres (2.8 mi) long and is the largest dam in Syria. The dam was originally built to generate hydroelectric power, as well as irrigate lands on both sides of the Euphrates.

Örebro is a city in central Sweden. The natural center of the City is otherwise the magnificent Örebro Castle, situated on an islet in the Svartån.This castle was constructed during the stewardship of Birger Jarl during the early 13th century and then modified and enlarged during the reign of King Gustav Vasa in the 1560s.

The Château de Chambord, is one of the most recognisable châteaux in the world because of its very distinctive French Renaissance architecture. The building, which was never completed, was constructed by King Francis I of France. With more than 700,000 visitors a year, the Château de Chambord is the biggest and most visited castle in the Loire Valley.

Fasil Ghebbi is a fortress-enclosure located in Gondar, Ethiopia. It was built in 1636 by Emperor Fasilidies, who broke with the old tradition of the Ethiopian Emperors to travel around their possessions, living off the produce of the peasants and dwelling in tents. The unique architecture of Fasil Ghebbi shows diverse influences, including Nubian, Arab, and Baroque styles.

Opened July 17, 1955, the Sleeping Beauty Castle is the oldest of all Disney castles. Though it reaches a height of only 77 feet (23 m), it was designed to appear taller through a process known as forced perspective; design elements are larger at the foundation and smaller at the turrets

The Pena Palace is a Romanticist castle on the Portuguese Riviera. The castle stands on the top of a hill in the Sintra Mountains above the town of Sintra, and on a clear day it can be easily seen from Lisbon and much of its metropolitan area. It is a national monument. The palace is a UNESCO World Heritage Site and one of the Seven Wonders of Portugal.