An enormous sinkhole swallowed a 3 story building whole in May of this year. This image was posted by the Guatemalan Government after a series of torrential rains and busted sewer pipes caused this hole to form.
Not Photoshop, sadly: these happen from time to time during major storms in part because of unstable geology, and in part, bad urban engineering... A break in the over-stressed sewage pipes after the storm was the cause for this one. There are rumors of other sinkholes now forming nearby.
This has happened before.
Photo - Gobierno de Guatemala | Via BoingBoing