Ambigrams

Look at the picture of "wordplay." Now turn your head sideways and look at it upside-down.

Crazy.

Calligraphic-style words that can be read forwards, backwards, upside-down, etc. The link above goes to one of the subpages, but more examples can be found by following the menu links at the top of the page.

Most of my ambigrams read the same when turned "upside down," or rotated 180 degrees. If you were to climb up on your desk, walk around behind your monitor and lean way over so you could see the screen, you'd be able to read "Wordplay" just as easily as you could sitting in your chair.