A company called ET3 has plans in the works for the Evacuated Tube Transport, a high-speed transportation tube that uses magnetic levitation. The ETT can travel at speeds of up to 4,000 miles per hour, and each tube seats a maximum of six people and comes with a baggage compartment. How does it go so fast? It's airless and frictionless and could have you from New York to Los Angeles in 45 minutes, as opposed to the nearly five hours a direct flight would take. It could even have you depart from New York and be in Beijing in two hours.