Tropical diseases such as dengue fever, malaria, chikungunya and West Nile virus were long considered a distant threat – but now they have reached Europe.
There are more than 10,000 cities around the world and 55% of the world’s population — over 4 billion of us — call them home.
In these trying times, holding on to hope may seem foolish. But who are we without hope?
Built in orbit by nearly 300 astronauts from 26 countries, the International Space Station stands as a powerful symbol of what humanity can achieve together.
The solar system we know may seem eternal. Yet long before our Sun and planets began their elegant dance, billions of years of chaos and wreckage reigned supreme.
"Ports of the World" takes viewers inside the high-stakes world of global trade and cruise travel, where every harbour is a power hub shaping economies, cities and lives.
When massive loads must be moved, engineering is pushed to its absolute limits.
Human performance has limits – or so we thought.