The Sahara desert expands at about 1km per month.
90
The 'King Ranch' in Texas is bigger than the state of Rhode Island.
49
It's still possible to see the division between East and West Germany due to different light bulbs.
5
Check your map! Virginia extends farther west than West Virginia.
67
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
Australia's Great Barrier Reef is 1,250 miles long!
45