Another one of the roof

Binion's (*duh*)

Elvis & fans

Geeks on a slide

Golden Gate Casino

Hallway in the Venitian

Harra's

Huh?!?

Nothing Exceeds like Excess

Roof over Freemont @ sunset

Spiral Escalators.

Street musician

The Bellagio

The Golden Goose & Glitter Gulch

The Pioneer Club

The Venitian

This just begs for an explanation, doesn't it?