The Gate Tower Building skyscraper in Japan has a highway passing through its fifth, sixth and seventh floors.
7
When glass breaks, the cracks move at speeds of up to 3,000 miles per hour.
423
There was once an undersea post office in the Bahamas.
241
If you had 10 billion $1 notes and spent one every second of every day, it would require 317 years for you to go broke.
109
Fine-grained volcanic ash can be found as an ingredient in some toothpastes.
55
The largest diamond ever found was an astounding 3,106 carats!
99
In the White House, there are 13,092 knives, forks and spoons!
51
The search engine Google got its name from the word 'googol', which refers to the number one with a hundred zeros after it.
56