26Covered bridges
Covered bridges are designed with roofs to protect and preserve the wooden structure from the elements. Uncovered wooden bridges typically have a lifespan of only 20 years because of the effects of rain and sun, but a covered bridge could last 100 years.
27. A mathematician named Nicolas Bourbaki who has made many strides in mathematics, never even was a real person, but was a collective pseudonym for a group of mathematicians who wrote their own textbooks.
28. An average man shouldn’t have more than 36g of added sugar and an average woman shouldn't have more than 25g of sugar per day. To put that into perspective a can of soda has 40g of sugar in it.
29. The High Place Phenomenon, also known as "The Call of the Void" is a sudden, strong, but usually very quickly dismissed, urge to do something incredibly stupid, usually associated with jumping off a high place.
30. Despite being a cliche, only one historical map actually uses the phrase "Here Be Dragons". The Hunt-Lenox Globe from 1504, one of the oldest globes in existence, uses the phrase on the east coast of Asia. It is believed to have been inspired by tales of Komodo Dragons from Indonesia.
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31Walt Disney Concert Hall
The sections of the shiny stainless steel exterior of the Frank Gehry designed Walt Disney Concert Hall in Los Angeles had to be de-polished because in the bright sun they were cooking neighboring buildings and blinding drivers.
