Watch these primitives take on the challenge of building a dream pool using only manual labor. What starts as an idea quickly turns into days of exhausting digging and shaping. Mistakes begin to slow ...

Watch these primitives take on a 155-day challenge, building a twin underground shelter with a swimming pool and water slide using only manual labor. What starts as a massive plan quickly turns into ...

Both treat marginalized people as "internal enemies" and use propaganda and laws to turn society against them.

Imagine waiting for incoming passengers at the arrival gate at the airport. Your visual system can easily find faces and identify whether one of them is your friend's. As with other tasks that our ...