See how students at the Rodríguez Casado de Palos de la Frontera Institute in Huelva, Spain learn to use the oil found at home to make biodiesel, an alternative car fuel.

Historians continue to discuss the subjective nature of recorded history and the fine line between fiction and fact.

75 Minutos continues its exploration of the intense and dedicated lives of Spanish chestnut pickers.

At Colombia's Mono Núñez music festival, many indigenous musical instruments can be heard. Learn about some of them in this video.

The exploration of Colombian family dynamics continues as interracial couples share the stories of how they first met and fell in love.

75 Minutos continues with its first-hand look at how Spanish migrant workers harvest the olive crop.

Colombians at the Mono Núñez Festival in Cali talk about their objectives for attending it, among them the importance of preserving traditional Colombian rhythms in a period in which their mainstream popularity is waning.

Festivaliando continues its behind-the-scenes peek at the music, performers and attendees of the famed Mono Núñez Festival in Ginebra, Valle de Cauca, Colombia.

Meet Yimmy, who grew up on the streets and in a children's home, and his daughter Karen Dayana, who almost met the same fate as her father. They make up one of the many types of families we see today.

In the second part of this series, we see the rest of the process of making the alternative car fuel, biodiesel, with some students from the Rodriguez Casado Institute in Palos de la Frontera, Huelva, Spain.

Mario learns that diversity at the Mono Núñez Festival extends beyond the various Colombian musicians, as English people seem to enjoy Andean music as much as Colombians do!

Sub30 continues with Jimmy, who tells us about some of the challenges and rewards of being a single parent.

Singing in Nasa Yuwe, their native language, is one way in which Colombia's indigenous Nasa population strives to preserve and make more visible their language, culture and customs.

Sub30 explores the manner in which having children may change some people's perspective on life.

This episode of 75 Minutos shows us a bit about how the Spanish chestnut farmers sell their product, how it is processed and the multitude of delicious foods and dishes in which chestnuts can be utilized.