1City Farms For many families, putting enough food on the table is a daily struggle. And things will get worse before they get better. The world has too many mouths to feed and we are fast running out of good farming land. It is being overgrazed, gobbled up by sprawling cities, or sold up to foreign interests. The solution to this global crisis might just be the return of the humble vegetable patch but on a massive, modern scale. Entire skyscrapers, housing farms, not office workers. No soil, no sunlight, no seasons. It's a food revolution and it's already underway in the United States and in New Zealand's own backyard.

2God's Architect Before stepping down as Pope earlier this year, Benedict XVI carried out thousands of official duties over eight years, but only once did he travel outside Rome to bestow the Vatican's highest honour on a church, transforming it into a basilica -- a sacred place forever. It's called the Sagrada Familia it may be one of the most spectacular buildings ever constructed by man, the vision of genius Spanish architect, Antoni Gaudi, known as God's architect, who died almost a century ago. It has been under construction for 130 years and it is still not finished. Why would a church take so long to build? Because, as 60 Minutes first reported in March 2013, Gaudi's design was as complicated as it was advanced. Today, the Sagrada Familia has become the longest running architectural project on earth.

3The Nile Crocodile Of all the different species of crocodiles in the world, Africa's Nile crocodile is the most dangerous and deadly. They can grow up to 20 feet long, weigh as much as a car, and bite as hard as a Tyrannosaurus Rex. Crocodiles are prehistoric creatures that have been around since the time of the dinosaurs, but humans still don't know a lot about them because studying them up close on land is treacherous, and underwater was always thought to be impossible. Two wildlife filmmakers in Botswana in southern Africa have found a way to get up close to crocodiles in the murky waters of the Okavango Delta. The images they've captured are some of the most remarkable wildlife scenes we've ever seen.

4Viewer feedback about last week's story "A Mate's Mistake" about Gabby Molloy, the woman who stands by the man who accidentally shot and killed her partner in a hunting accident.