The Hanging Sun

Whenever people today see wonders of the ancient world, like Stonehenge or the Pyramids, the question that always comes up is "how'd they do that? These are the questions that this documentary series tries to answer, and one thing is clear ? it wasn't easy!

Dan Cruickshank travels across the world, celebrating different types of architecture and showing how our buildings reveal our aspirations, our ingenuity and our beliefs. In each programme, buildings from all over the world are dramatically juxtaposed, revealing unexpected connections between very different types of architecture.

Shortly after my father died the phone started ringing. My father was Hugh Everett III. When he was 24 he wrote a ground-breaking thesis about physics most commonly known as "the many worlds theory". It challenged the accepted notion of how the world works in such a huge way, stating that there were actually countless versions of ourselves splitting off and going through as many different scenarios as you could imagine, and the physics powers that be (Albert Einstein, Niels Bohr) were having none of this.

A Swedish family travels to the French Alps to enjoy a few days of skiing. The sun is shining and the slopes are spectacular but, during a lunch at a mountainside restaurant, an avalanche turns everything upside down.