Colleen and Chris Otcasek from California were looking for a new house, and finally bought one in Woodland Hills. Their new home didn’t look any suspicious, up until they’ve found a large, concrete-lined hole in their back-yard, which turned out to be a bomb shelter. They were brave enough to venture and go down into the bunker, where they have found a shelter for a family of four, stocked with everything they would need for up to three weeks of staying. They found out that it was built by Alvin Kaufman – a self-taught nuclear engineer, who worked for the US Government in the 60’s. It explains why he knew every danger of the nuclear attack and prepared the shelter accordingly – with several sleeping areas, a water tank, a hand cranked air filter and enough food and other supplies.

USSR, Extreme North, 80s. A polar explorer is feeding a hungry polar bear female with condensed milk. She squeezed the milk out, ate it and then fed the cubs. Could you even believe these photos are real? Only the mutual trust between the human and the nature could make these photos come true.

Artist Brent Estabrook from Seattle, Washington makes such detailed paintings that people often ask him if they aren’t photos. Check ‘em out.

Here is the next generation jet called the G500. It will enter service of the Qatar Airways and Flexjet in 2017. Take a closer look.

All these projects cost billions of dollars but demonstrate how investing big money into something useful can reshape our world and make it a nicer and better place to live in.