No, this is not an episode of Star Trek. This is reality. Robotic arms 3D printing a steel bridge on site. Check out this article from 3DPrint.com.
Beam me up, Scotty!
The oldest of Amsterdam’s approximately 1,280 bridges in use dates back to 1648. The city is famous for its beautiful canals and waterways, and Dutch engineers have long made their names in constructing ways around the “Venice of the North.” Tourists are encouraged to visit one particular bridge on the Herengracht canal, from which they can see 15 bridges in one view. In addition to bridges, the Netherlands has been gaining fame across the board for its reputation in the global 3D printing arena.