Any domino can knock over another object up to 1.5x its size. The 32nd object would be big enough to knock over the Empire State Building.
18
Leather skin does not have any smell. The leather smell that you sense is actually derived from the materials used in the tanning process.
23
On average, the life span of an American dollar bill is eighteen months.
33
The 409 escalators in the London subway cover a distance every week which is approximately equivalent to several trips around the globe!
94
There are more telephones than people in Washington, D.C.
121
The chlorine smell in swimming pools is accentuated by the chemical's reaction with impurities (like poop.)
7
The best diamonds are colored blue-white.
80
The full moon causes a tidal wave to roll up the Amazon river once in day and once in night for a period of only three weeks in a year. This results in continuous 4m high wave that can be surfed for up to 13km.
14