Added to this geological wonderland is the legacy of five thousand years of human occupation.

UNESCO: MEDIA SERVICES

This they say can be done easily using satellites to track where these large boats go and to ensure they're not destroying wildlife that's almost five thousand years old.

BBC: Mundo | Aprenda ingl��s | Destrucci��n de los arrecifes de coral

Human-rights groups estimate that more than five thousand people have disappeared in Mexico in the past five years.

NEWYORKER: The Kingpins

Two-thirds of the price was subsidized by the city, which estimates that it has replaced almost a hundred thousand coal stoves since the project began, five years ago, cutting down on sulfur and dust emissions.

NEWYORKER: Green Giant

Nine thousand patients were given either Vytorin or a dummy pill for an average of five years.

FORBES: Finally, A Win For Vytorin

Stand in the center of the rotunda and gaze up to the heavens through the eight-meter-high oculus at the center of the five-ton concrete dome --a stunning feat of ancient engineering, still intact after two thousand years.

CNN: 24 hours in Rome: Pizzas, piazzas and 'la dolce vita'

Some executives question whether it will be possible to build a market beyond a few thousand users. (Prima says it plans to install its systems in 250, 000 homes within five years.) Others say the high price would create an exclusive, super-premium niche market without cutting into existing sources of revenue.

WSJ: First-Run Movies at Home��for $20,000