Article: Historical Underground Rivers

The link below is to an article that looks at 8 historical underground rivers.

For more visit:
http://mentalfloss.com/article/49004/8-underground-rivers

Article: Shipwrecks of the Baltic Sea

The link below is to an article that looks at the shipwrecks of the Baltic Sea.

For more visit:
http://www.environmentalgraffiti.com/news-mysterious-wrecks-baltic-sea

Article: Typewriter History

The link below is to an article on typewriter history.

For more visit:
http://mentalfloss.com/article/48912/brief-history-typewriter