This is why GoPros are amazing.
"Achieving Your Childhood Dreams", a heart-breakingly good lecture by Carnegie Mellon professor Randy Pausch.
China is building massive metropolises just to keep construction busy and generate growth. The result are ghost cities.
An engineer explains how the Pyramids were built. Incredible!
People living underground, closed subway stations, vacant lots -- take a tour of the parts of New York City you don't see.
An amazing color video of New York City in 1956 - "Spectacular New York".
Incredible: an Orca tries to communicate with humans on board a boat by imitating the boat itself.
So many vintage skills.
This is awesome.