Pss, hey, smarty pants, trusty narrator here. As you can hear, I'm in a stadium attending a pretty wild sporting event. Nope, it's not baseball. Or football. Or soccer.

Goal!

Here's a hint.

I used my time-traveling app.

To go back to ancient Rome, and now I'm sitting in what's considered the most famous arena

in all of world history

watching things like this and this and even this.

Any guess what this arena is called?

Did you say the Roman Coliseum?

That's right, Smarty Pants.

Great job if you got it.

Now, you may have heard about the Coliseum or even seen it in a movie.

Maybe you've even visited it.

But for those who haven't, the Roman Coliseum is where they held something called gladiator fights.

A hundred bucks on the guy with the cool score.

100 bucks on the guy with the cool mask. 100 bucks on the guy with the cool mask.

100 bucks on the lion.

Woo-hoo! Pay up, boys!

Yep, things got pretty hairy inside the Coliseum.

Which was pretty crazy in and of itself.

For one thing, the Coliseum is over two football fields long, 500 feet wide,

and 16 stories high. It is the largest amphitheater in the world.

...