The non-profit foundation myclimate, with Swiss roots, offers three tours: one for adults, one for teens, and one for kids. The goal is to help you discover more about biodiversity, pedestrian-friendly areas and climate protection. All you need to do is download the free app and select one of the stories. The audio recording is about 60 minutes long. You can do the tour on foot, which would take about 2.5 hours, or rent a bike. For adults: Heat from the river Limmat, biodiversity and new forms of housing. For teens (over 11 years old): Mia wants to know! For kids (over 5 years old): The lizard from Zurich Central Station.

Discover Tuscany's main attractions with a local guide on this day trip from Florence. Enjoy a guided tour through the city of Siena, including entry to its gothic Cathedral, then head to the scenic Chianti hills for a delightful Tuscan lunch and wine tasting. Later, wander through the streets of San Gimignano, and finally, travel to Pisa to marvel at the architectural drama of Cathedral Square — home to the UNESCO-listed Leaning Tower of Pisa.

Reportedly the world's oldest library, first established in Fes over an entire millennium ago (9th century), the Al-Qarawiyyin Library recently opened its doors to the public once again following a restoration effort. The library still belongs to Qarawiyyin University, the oldest continuously operating university on Earth.

The Struve Geodetic Arc is a chain of survey triangulation points that stretch from Hammerfest in Norway all the way to the Black Sea. The imaginary lines go through ten countries and over 2,820 kilometres. Carried out between 1816 and 1855 by the astronomer Friedrich Georg Wilhelm Struve, this survey represented the first accurate measuring of a long segment of a meridian, helping establish the exact size and shape of the planet. Sweden has seven measurement points and four of them are on the World Heritage List (on the mountains Tynnyrilaki, Jupukka, Pullinki, and Perävaara). The mountaintop unveils an expansive view.