#5. Prague Castle, Prague
It is the largest ancient castle in the world and has seen the changing of government over time. It has served as on office to Holy Roman Emperors, Bohemian Kings and modern-day presidents.
#6. The Swallow’s Nest, Ukraine
The castle isn’t huge by its size but it is one of the most popular tourist destination of Crimea. What makes it so fascinating is the fact that it hangs from a cliff and one gets this splendid view of the sea from the castle.
#7. Ljubljana Castle, Slovenia
The small and picturesque country hides within it several jewels and this castle is one of them. It was built during the 11th and 12th centuries but ended up losing some of its charm but a walk through it will certainly take you back in time.