They don't all work the same way. On the other hand, I like rock and roll. Without a chance for chaos, you don't get a chance to explore the issues. If you lock things down too quickly you lose the opportunity to take big leaps. But we've innovated enough to see some common threads.
Websites have structural links.
There usually is a hierarchy imposed. A way to pop out a level, or to go deeper. There's a sequential ordering to most big websites, a Next and a Prev. Go thru the chain and you'll see everything. There's the concept of a Home, the very topmost page.