Top 10 most dangerous structures in the world (2)

Lichtenstein Castle, Germany（德国利希滕斯坦城堡）

Lichtenstein Castle is situated on a cliff located near Honau in the Swabian Alb, Baden-Württemberg, Germany, at an altitude of 817 meters. Historically there was an old castle present on the site since around 1200. It fell to ruins after being destroyed during the Reichskriegs war of 1311 and by the city-state of Reutlingen in 1381. The current Neo-Gothic-style castle was built by Duke Wilhelm of Urach in 1840-42. Today, the castle is still owned by the Dukes of Urach, but its doors are open to visitors. The castle contains a large collection of historic weapons and armor

The Leaning Tower of Pisa in Italy, an architectural wonder, is popularly regarded as one of the most dangerous buildings in the world. Can you think of any other structures which seem to be in great peril? They were purposely and skillfully constructed at the riskiest of locations or sometimes just had their appearance altered to reflect a sense of danger and awe.

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