Letter tiles can be stacked on top of others
According to Hamilton - how does Greek mythology differ from folklore of other ancient cultures, why does it differ?
How did the Great Exhibition of 1851 in the Crystal Palace in the UK differ from the French Industrial Exposition of 1844 which is said to have inspired it?
What word game, a spin-off to Scrabble that allows proper nouns and words spelled backwards to be used and allows players to "steal" letter tiles from other players, was announced on 6 April 2010?