The challenge gets bigger as the Dominoes get smaller! Watch as 2,000 mini Dominoes (which are 80 times smaller than full size Dominoes) topple for a Guinness World Record.
A look back at the biggest newsmakers this week and the headline you may have missed.
The Lammily doll wants to show children that average is beautiful.
Republicans sued over the implementation of President Barack Obama's signature health care law.
The fuel leak can increase the risk of fire, safety regulators say.