Dowbrigade

In Singapore a new world record has been set for the
longest domino topple. Ma Lihua, who is from Beijing, single-handedly
set up and then knocked over more than 303,000 dominos. Her figure smashes
the previous record of 281,000 set in 1984.

It took Ma Lihua more than six weeks to set up the dominos. On a number
of occasions cockroaches got into the hall at the Singapore Expo where
the record attempt was being held. They knocked down thousands of dominos,
undoing days of work and making Ma Lihua cry.

from
the BBC