没有现代起重机，也没有大型机械，古罗马人却在不到十年的时间里建成了宏伟的斗兽场。从深达13米的地基，到复杂的拱券、地下机关和可注水的竞技场，这座两千年前的建筑藏着怎样的工程智慧？
The Colosseum in Rome is one of the most notable and impressive feats of architecture in the history of the world.
Opened in the year 80 CE by the Emperor Titus, the arena was used to stage gladiator combat, skirmishes with wild animals, and even mock naval battles with actual boats.
The unknown architects behind this design put extensive thought into every detail.
If you've ever wanted to construct your own amphitheater of death, then this is your lucky day, because today we're going to take a look at how the Romans built the Colosseum.
But before we get started, be sure to subscribe to the Weird History Channel, and let us know in the comments below what other historical sites you would like to know more about.
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In 64 CE, Emperor Nero built himself a home, which he humbly nicknamed the Golden Palace.
Clearing the land necessary for construction meant seizing property from numerous ordinary Romans, which as you might imagine, wasn't a super popular move.
After Nero died, the empire quickly cycled through four other corrupt emperors.
