You guys, this is the inside of a building at the Technical University of Munich, in Munich, Germany. And yes, those are GIANT SLIDES.
The slides — which were installed in 2010 — span all four floors of the building, which houses the mathematics and infomatics departments.
So why slides? According to German law, a portion of each building's budget must be spent on art — and the slides counted as an art installation.
Yep, they've been around for a bit, but hey, THEY'RE SO AMAZING!