What are some riffs that as soon as you start playing, everyone knows what it is?

Sunshine of my love.
Stairway to heaven.
Smoke on the water.

...what else?
Guitar: Epiphone Les Paul standard

Amp: Peavey 6505 halfstack

Effects: Dunlop Slash Crybaby
Boss ML-2 Metal Core
Digitech Whammy
Jump by Van halen, if you can play a keyboard. Alot of Zepp, like Black Dog and Rock n Roll. More Than a Feeling.
smells like teen spirit not classic rock really but most people know it
Legend LP
Nylon Acoustic
Legend 10D Amp
Korg AX3G

Highway to Hell ftw
Quote by Diet_coke_head
I love taking a nice dip of some horse shit, so good.
Tears In Heaven
Enter Sandman
Hot Blooded
Sweet Child O' Mine
Purple Haze
Foxey Lady
Sweet Home Alabama
// And maybe to a lesser extent
Breakin' The Law
You Really Got Me(Van Halen one)
The Boys Are Back In Town
Message In A Bottle
Rocky Mountain Way

/ Enjoy
2004 Fender American HSS Strat
Hughes And Kettner Switchblade
Schecter C-1 Hellraiser FR
Epi LP Classic
Epi G-400
Yamaha acoustic
Boss DD-3 Delay
B.Y.O.C. MXR Distortion+
Vox Wah
Ibanez TS9 Tube Screamer