Every year, Alaska has about 5,000 earthquakes.
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Mexico City is built on top of an underground resevoir!
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Israel's Dead Sea is 1,312 feet below sea level.
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Australia's Great Barrier Reef is 1,250 miles long!
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Forest growth in the US has exceeded harvest since the 1940’s. Today, we have more trees than any time in the past 100 years.
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10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
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The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
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Check your map! The Pacific entrance of the Panama Canal is farther East than the Atlantic entrance.
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