In this week's episode of PISA, we delve into the Raschpëtzer, a system of subterranean water tunnels built by the Romans.

The Raschpëtzer are located in a forest near Walferdange in central Luxembourg.

Although locals were well aware of the mysterious holes in the ground, it was not until the 1980s that significant funding was provided to excavate the tunnels.

Almost forty years later, work is still ongoing, but the site is already recognised as one of the most important pieces of Roman engineering north of the Alps.

RTL Today has teamed up with PISA, the Luxembourgish science magazine, to reproduce their original videos in English for our site - so to find out more about the Raschpëtzer, watch the video below!

Raschpëtzer
In this week's episode of PISA, we delve into the Raschpëtzer, a system of subterranean water tunnels built by the Romans.

This video is part of the PISA series for RTL Today. Watch all English videos on RTL Play, or discover the wide range of subjects previously covered in Luxembourgish here (there are 13 seasons, mind you! We'll try and catch up...). Our previous episodes covered the history of the tramLuxembourg airport, explained how the coronavirus vaccine works, asked why traffic lights always seem to be red and investigated where our tap water comes from.