The host of the program is Alberto Angela, a well-known journalist and television personality who often hosts television programs on archaeology and culture (along with his father -- Alberto also holds a degree in Natural Science from La Sapienza). In this program, Alberto Angela crosses the globe visiting cultural sites as well as visiting some unique sites in Italy. There's also a very informative show on the giant squid, its history and research into this unique and amazing creature. The programs aren't always about history and archaeology but a true exploration of our planet into areas and sites that often don't receive a lot of attention.
I've watched about a dozen episodes - they last between 5 minutes to as long as 15 minutes. Alberto Angela is easy to understand, speaks well, and brings a passion and love for what he does -- not only can you listen and improve your Italian, but you can also learn something, too!