If you get tired of all the glitz and glamour of Las Vegas Blvd, come to Fremont street and check out old Las Vegas.
It feels totally different here. Like you walked into the past or you put on a pair of vintage colored glasses. There are old casinos like the Golden Nugget and places to eat and drink.
If you want to take a picture with Elvis, here's where you'll find him.
I'd say you can hang out here for 2 or 3 hours max, including eating and walking around. It's about a 15 minute drive from Las Vegas Blvd, so if you are staying on the strip, grab a cab/rideshare to get here.