The Chunnel (Channel Tunnel) Quiz Information

Excellent. A true Pentaster! *****

Very fun and entertaining game, this one is outstandig!

I forgot to say that the the cross-sectional diagram is in the public domain. Also:

the cross section is by Arz, modified by Commander Kean at Wikipedia/Wikimedia.

The geologic profile is by Commander Keane, based on Adapted from: CJ Kirkland, Engineering the Channel Tunnel, 1995, page 27. This is also at Wikipedia/Wikimedia.

The map is by Mortadelo2005, again at Wikipedia/Wikimedia.

For more about the Chunnel (AKA Channel Tunnel or Eurotunnel), as well as all three images, see:

http://en.wikipedia.org/wiki/Channel_tunnel

Map alone:

http://en.wikipedia.org/wiki/Image:Course_Channeltunnel_en.svg

Geologic profile alone:

http://en.wikipedia.org/wiki/Image:Course_Channeltunnel_en.svg

Cross sectional diagram alone:

The other two files are licensed under the Creative Commons Attribution ShareAlike license versions 3.0, 2.5, 2.0, and 1.0.

Details (3.0):

http://creativecommons.org/licenses/by-sa/3.0/