In Rome, I booked a hotel right beside the Colosseum with a close view overlooking it. However, I also planned a guided visit inside to see the underground! It was so fascinating to hear all about the history of the place. Its uses, what went on, and how long ago.
A panoramic view from the stage. The place where gladiators and wild beasts would fight for their spectators.
The underground tour where we learnt about exactly what went on down there, including dungeons for gladiators, cells for the many slaves, and more cells for all the wild beasts and creatures who would be used in battle, often to the death. Where green patches can be seen on the floor, indicates the original ground with no restoration.