Haven't been there in a few years, but always had fun just walking the Strip and checking out the casinos.
NYNY has all kinds of things inside - like a miniature city - then up the Strip there's the gondola rides and the pirate show and going up the mini Eiffel Tower.
Some of the old Strip neon signage was relocated a bit North.
Maintain your situational awareness walking around, though; there are some creepy and nefarious people to avoid.
Had my rental car broken into there on one trip 20-some years ago.
The "Pawn Stars" shop - Gold & Silver is its real name - is off the actual Strip, though it didn't really impress me.
I think Shelby still has a presence further North, on the way to the track.