Palindromes

Ever heard of a palindrome? You probably have, but maybe didn't know its name. Palindrome is a word or phrase spelt the same forwards and backwards.

Like NOON (Which is also the same upside down, to add to the awesomeness)
LEVEL
CIVIC
ROTOR

etc etc.

Then you can get into whole phrases, like

A man, a plan, a canal, Panama.
Al lets Della call Ed Stella.
Dammit, I'm Mad.
Do geese see god?
Golf? No sir, prefer prison flog.

Or this, possibly the longest palindrome EVER.