Fulvio shows tells us the story of a door, a very famous door, called the Alchemist's Door, also called the Magic Door, or the Door to Heaven, a monument built by Massimiliano Savelli Palombara, Marquis of Pietraforte on the grounds of his villa in Rome.

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.

The Villa San Marco is an amazingly well-preserved luxury villa from the Augustan period, with a wonderful panoramic view of Vesuvius and the gulf of Naples. Marika shows us around the four nuclei of the villa.

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 1749, King Charles of Bourbon (Charles III of Spain) or Carlo Terzo di Borbone, who was King of Naples at the time, commissioned an important campaign of archeological digs in an area near that city. Marika tells us the story.

Fulvio shows us one of the most enigmatic monuments of all Rome, the Pantheon. He gives us some history, some interesting facts, and a legend, as well.

Writer and scholar Fulvio Benelli shows us a part of Rome that tourists always flock to: Piazza Navona. But he tells us the fascinating story of how it came to be.

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.

Observing what happens when the air comes out of a balloon will help us understand how the launcher of a spacecraft works. An electrical propulsion engineer from ESA explains about different kinds of propulsion used in space exploration.

To reach outer space, the force of gravity has to be overcome, and that requires a certain "escape" velocity. That's where launchers come in.

One way to tell if there might be life on another planet is through light. Special telescopes, by way of prisms, analyze and break down the light from distant galaxies into parts. Luca Parmitano, an astronaut of the European Space Agency, speaks to us from the Columbus International Space Station.

Luisella Giulicchi, the system manager for the ESA Copernicus Sentinel six mission, explains what an exoplanet is. Two young researchers do a simple experiment to show us how infrared rays work.

Luisella Giulicchi, manager of the European Space Agency ESA, answers questions about light, infrared rays, and lightyears.

What is light? We use it every day, but where does it actually come from? The host suggests doing a little experiment. See if you can follow the instructions in Italian and try it yourself.

Rossella talks about why she likes Pentidattilo so much, and imagines what it would have been like when it was populated by families. She has managed to preserve the magic of the place, where time has stood still.

Rossella feels that it's her mission to show people this marvelous place. She dedicates part of her home to guests from all over the world.

What a wonderful place Pentidattilo had been, but then plastic arrived and pretty much ruined everything.

Rossella tells us how she came to be the solitary inhabitant of a beautiful, abandoned village in Calabria, called either Pentedattilo or Pentidattilo.

The last stop on our trip around Venice is the beautiful, uninhabited island of Torcello. Marika has a few stories to tell about it.