Wikipedia

http://en.wikipedia.org/wiki/The_Ashley_Book_of_Knots The book on knots.

http://en.wikipedia.org/wiki/Banana_equivalent_dose Measuring radiation compared to the amount found in a banana.

http://en.wikipedia.org/wiki/%C2%BA There's a difference between the ordinal indicator and the degree symbol.

http://en.wikipedia.org/wiki/Wobbly_hedgehog_syndrome There is no known cure for Wobbly hedgehog syndrome.

http://en.wikipedia.org/wiki/Activities_of_the_Holy_See_within_the_United_Nations_system#Multilateral_treaties A list of the treaties the Vatican has accepted.

http://en.wikipedia.org/wiki/Elsa_Einstein Einstein married his cousin.

http://en.wikipedia.org/wiki/The_Man_Who_Came_Early The Man Who Came Early

http://en.wikipedia.org/wiki/Musth When elephants go bad.

http://en.wikipedia.org/wiki/Woonerf The woonerf is a Dutch road for bicycles.

http://www.netsoc.tcd.ie/~mu/wiki/ This website shows the shortest path between any two Wikipedia pages.