The Main Library at Indiana University sinks over an inch every year because when it was built, engineers failed to take into account the weight of all the books that would occupy the building.
240
U-Haul is the world's largest advertiser in the Yellow Pages.
21
The weight of air in a milk glass is about the same as the weight of one aspirin tablet.
63
A fire in Australia has been burning for more than 5,000 years!
91
If the human eye was a digital camera, it would have 576 megapixels.
25
More than 10% of the world's salt is used to de-ice American roads.
54
Oak trees can live 200 or more years.
61