Technology

How long is the Gotthard Base Tunnel?

57 km. It runs up to 2.3 km beneath the Alps, deeper below the surface than any other transport tunnel.

How close would your guess have been?

In the game we ask it like this: “The Gotthard Base Tunnel, the world's longest rail tunnel, runs how many km?”

Type a number — scored exactly the way a round in the game is.

The answer

57km

Quest Giggle turns questions like this one into 30-second duels. Closest guess takes the round — free on iOS and Android.

2–4 player duels