This is a few ideas for a visit to Las Vegas, besides exploring the casinos and restaurants and clubs:

Your first stop should be the Las Vegas Visitors & Convention Center Bureau across the street from the Hilton.  Besides having information on anything you may interested in in Las Vegas & the surrounding area, you can also pick up free maps, posters & coupons here. The people there are very friendly & fairly knowledgeable as well.

Madame Tussuad's Wax Museum is a great place to spend a couple of hours.  There are several dozen celebrities that you can touch and get close to, making for great photo ops!

M&M World is a definite must-see!  With four floors of memorabilia and dozens of colors to choose from, you'll be glad you stopped by!  Be sure to check out the free 3D movie on the 3rd floor the kids will love it.

The Secret Garden at the Mirage is nice if you're an animal lover.  There are white tigers, elephants, lions, and dolphins which can appeal to all ages.  Also the Shark Reef at Mandalay Bay is is fabulous - don't miss the jellyfish exhibit.

There are several thrill rides to try out.  There's a roller coaster on top of NY-NY, 3 different rides on top of the Stratosphere, a roller coaster at the Sahara and the Adventure-dome at Circus Circus.

The Pinball Hall of Fame is not just a museum, but an arcade as well, where you can play with history. It is run by a pinball collectors club. The games cost only what the original price was when they were manufactured. There are few games here that are the only one of their type in the entire world. Besides being great for all ages, it is inexpensive.  The money collected from the games goes to pay their rent & utilities first, with remainder of funds being donated to a local charity.

Ethel M Chocolate Factory has very good candy and a great cactus garden.  The tour is also fun & gives you a free sample at the end.  

The gondolier ride at the Venetian is a must-do for any couples looking for a little romance but you must book in advance.  There are actually 2 rides, one outside and one in the Grand Canal Shops.  There are also performances held throughout the day by singers and dancers dressed in Renaissance costumes, as well as living statues & the Gondolier march in the morning & late afternoon.

Many people like simply to walk up and down the strip, stopping at all of the shops as they go along.  There's a shopping mall on the Strip (The Fashion Show Mall) - across from The Wynn - with 250 or more stores and often offering fashion shows and other live entertainment in its confines.

If shopping is your "thing," there is a new mall south of Mandalay Bay, and both it and the Belks Outlet Mall south of the airport can now be reached by riding the Deuce south.  The route does not go into the new mall, but it's only a few 100 feet from the street to the entrance to the mall.  You'd catch the bus at the same place to return to the Strip.

Don't forget the Fremont Street experience downtown.  A free light and sound show (about 5-10 minutes long) every hour starting at dusk.  And, there's excellent ongoing live musical entertainment along the 4 blocks for the duration of the evening. There are also several refurbished neon signs placed throughout Freemont Street. They are beautiful at night.

Speaking of neon signs,  you can tour the Neon Boneyard. If you enjoy old neon, old signs or Las Vegas history then book this tour in advance. The cost is about $15.00, is outside & limited to groups of about 20 people. Bring your cameras & wear your close toed comfortable shoes because the tour runs about 90 minutes.  

Another option is to see a show. Since this is Vegas, go for something kitchy like Barbara & Frank - The Show that Never Was or The Fab Four(yes, it's a Beatles cover band in Vegas!). If you want some variety entertainment for the family, you could check out  Larry G Jones'  singing impressionist comedy show that pokes fun at dozens of Las Vegas biggest headliners and performers.

The Silverton Hotel has an advertised free fish feeding show that kids love. They also have a unadvertised show as well. A Mermaid swims around in the fish tank & interacts with those standing outside watching her. She signs "I Heart You" to the kids, blows kisses to the girls & does "fist bumps" through the glass with the boys. Just call the hotel for days & showtimes to get the information.

When you tire of neon, sequins, and song, make the 30-minute drive to Red Rock Canyon National Conservation Area.  You can hike on your own, but consider going with a local expert.  They can arrange private or group hikes and rock-scrambling adventures in the area, with outings tailored to the participants' fitness and experience levels.  There's also a visitor center, and a 13-mile scenic drive.

Day trips are also available to the Grand Canyon, Death Valley, Lake Mead or Hoover Dam via bus, plane and helicopter, or even cruise, and trips can be booked on line or through your hotel concierge.