The city of Houston, Texas is built on a swamp and is slowly sinking!
89
It's still possible to see the division between East and West Germany due to different light bulbs.
5
The Caspian Sea is also classed as the world's largest lake.
52
More than 25% of the world's forests are in Siberia.
51
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
The warmest temperature ever recorded on Antarctica was 3 degrees F.
175
Check your map! Virginia extends farther west than West Virginia.
67