WHY DOUBLE TEN IS LUCKY FOR THE CHINESE

The double ten symbol in Chinese

Taipei 101

The symbol for ten in Chinese is +.  It is considered a powerful fengshui symbol to the Chinese. In Taipei, Taiwan, the City Hall is situated atop the T-junction of a road.  I am sure that many would know that having a home or building atop a T-junction is considered bad Feng Shui.
To negate the bad effects of the T-junction,  the Taipei city hall designers made the building in the shape of a Double Ten symbol.  This symbol would be really significant when it is viewed from the air  via satellite or the Taipei 101 observation deck.
The explanation for using the double ten symbol is that since the T-junction is bad luck and Double Ten is good luck therefore the bad luck will be negated by good luck. Get it!
Reference: http://blog.islaformosa.com/2008/10/double-tens-insignificance.html