There are hundreds of 1000-year-old underground tunnel systems in Europe, and nobody really knows who built them.


Once in a while archaeologists will come across a tunnel or artifact and have no idea where or when it came from.

Even then, it’s usually possible to figure that out eventually. It’s remarkable, then, that there are hundreds—possibly thousands—of underground tunnels under Europe that are a total mystery.

http://www.omgfacts.com/Interesting/There-are-hundreds-of-1000-year-old-unde/62348

Advertisements

One Comment

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s