You never know what's buried below your feet, but it could be infrastructure! Today's episode of WTI shows a number of subsurface utilities. Have a cool infrastructure photo? Send it in the Whats.That.Infrastructure@gmail.com. Have a great new year celebration! And, always call 811 (or your country's equivalent) before you dig. You never know what could be running below the ground! THE COMMENTERS HAVE SPOKEN! Blue pipes in Berlin - Drain groundwater from construction sites. Intake screen in Belgium - Likely for a saltwater aquarium Watch this video and the entire Practical Engineering catalog ad-free on Nebula: https://go.nebula.tv/practical-engineering Buy a T-shirt here: http://practical.engineering/shop/ Support these videos on Patreon: http://patreon.com/PracticalEngineering Website: http://practical.engineering/ Music: Elexive - Valley Santa (https://www.youtube.com/watch?v=TA7Hro7OYpc)