Le Cinque Terre — a place so many visitors from other countries put on their must-see lists — is the topic of this segment. It's a marvelous example of the relationship between humankind and nature.

A quarryman has to have a passion for his work. Every block of marble is a challenge and has to be observed on all sides and many times to make sure it is good. But succeeding in cutting it and taking it out is an enormous satisfaction.

Vennai is the most important marble quarry in Carrara. Luigi Pasquale talks about when he started working there at about 14 years of age.

We visit the 28th chapel where the scene of Jesus before Pontius Pilate is depicted. We also learn a little secret about how these statues were created.

The first place we visit is practically a theater on a mountain, designed and built to replicate places with religious significance in the Holy Land. The mountain, aptly named, is Sacro Monte (sacred or holy mountain) and is located in Piemonte, to the northwest of Milan.

Fulvio tells us plenty of interesting things about the history of one of the symbols of Rome, the Colosseum. To begin with, it wasn't always called the "Colosseum."

Fulvio describes the monument we look at in this segment before telling what it is. The story has some pretty surprising aspects.

The last stop on the trip to Castellammare di Stabia is the seafront, called il lungomare in Italian. There's a great panorama, a lovely sea breeze, and it's a great place to just walk around. Marika mentions the famous natural spring water of Castellammare, both for thermal baths and for drinking.

The name of the villa was inspired by the story of Dionysus who watched Ariadne while she slept. It was excavated first by the Bourbons but was buried again. Later in the 50s, digs were resumed and now, it can be visited in all its glory.

After Stabiae was razed to the ground in a war, the Romans decided to build some luxury villas in the area. Luckily, some archeological digs led by archeologist Libro D'Orsi were effectuated in the 1950s, and 3 villas came to light.

In August of 2014, the European Space Agency Rosetta probe reached the comet 67/P. This mission allowed for the collection of a great deal of data about comets. In fact, in this episode, a comet will be fashioned out of fairly common ingredients in a normal kitchen. That's pretty exciting.

This segment talks about the difference between an asteroid and a comet. Important work is being done with the Hera and Dart missions to study how to deviate an asteroid, thus avoiding possible great damage to our beloved planet

This segment is all about so-called "Near-Earth Objects," called "NEOs" for short. They are comets, asteroids, metors and man-made objects, as well. What have they done in the past, and what might they do in the future?

Astronaut Luca Parmitano talks to us from the Columbus European Space Laboratory. He explains why tadpoles can help us learn a lot about the weightless conditions of outer space.

A simple experiment with a bicycle pump shows us how rocket launchers work. Even though rockets were invented for war and for fireworks, they are also used for peaceful purposes.