The Wonders of Wikipedia

Wikipedia. It's addictive, I tell you. You look up one thing...something else catches your eye...you click...find something else... (It's the same thing as with a regular encyclopedia only this way you don't have to keep going back to the shelf for a different volume.)

Among the interesting things I learned today (either directly from Wikipedia or by clicking on a link):

The UK has 19,000 officially allotted phone numbers to be used for fictional purposes (TV, radio, etc.)

The US, by comparison, has the well-known 555 prefix. Officially, though, "only 555-0100 through 555-0199 are now specifically reserved for fictional use." (That's in each area code, though.)

Several countries have issued banknotes made from polymers, including Bulgaria (actually, it's a paper/polymer note) with a plastic window. (They actually have see-through holes in them! I thought they felt weird...)

The UK built an underground city-sized bunker in Wiltshire. It covered hundreds of acres and had miles of roads. Plus a pub (it IS England, you know!).

In ancient Mayan culture, the tail feathers of the quetzal bird were used as currency. The current monetary unit of Guatemala is still known as the quetzal.