Rube Goldberg machines are a dime a dozen on the internet. A fact that doesn’t make the circuitous chain-reaction machines any less impressive, but does make them blend together. A new Rube Goldberg ...

The sheer size of some of the world's tallest buildings is just extraordinary. The current tallest, Guinness World Records reports, is the Burj Khalifa in Dubai, which stands at 2,716 feet, 6 inches ...