One of the most recognizable structures in the world, the Roman Colosseum is the largest building remaining from Roman times. Its imposing presence in the city center of modern day Rome is a testament to the incredible history of the city and the achievements of the Roman Empire.

Visitors popping up from the nearest subway stop or turning a corner and seeing it for the first time can't help but be stunned by its immense presence. Construction began on the structure in 72 AD and today, it is still one of the greatest tourist attractions in the world.