Hiroshima bomb: Japan marks 75 years since nuclear attack
Bells have tolled in Hiroshima, Japan, to mark the 75th anniversary of the dropping of the world's first atomic bomb
Acropolis Museum celebrates 11 years with lower ticket prices and night walks
A series of events have been planned (Greek and English)
Pac-Man turns 40 (infographic)
It is the best selling arcade game of all time