My nail gal, who has been to L.V. many times, said that some of the hotels are connected to one another. I had never heard that.
She couldn't remember which ones.

Anyone out there know please? Thank you in advance.

Connected physically or corporately? She may be reffering to the Monorail that you can take up and down the strip:

http://www.vegas.com/transportation/monorails.html

Or that MGM is a corporate thing that owns the Mirage, Bellagio, Treasure Island, etc. and they're connected in that way.

Off hand I immediately think of Paris and Bally's. You walk through one, past restaurants and shops and at some point you suddenly realize you're in the other. They are totally connected.

Palazzo is conected to Venetian is connected to Venezia - via indoor hallways, very nice when it's brutally hot and sunny out!

Mandalay Bay, Luxor, Excaliber are connected by tram.

Treasure Island and Mirage are also connected by tram.

There are also people movers here and there.

With a web search, you can find some amazing maps of the Strip, hotels, and Las Vegas in general.

Mandalay Bay, Luxor, Excaliber are also connected indoors (you don't need the tram, it's not a far walk).

We stayed at Bally's and loved that Paris was connected indoors.

Thank you all so very much!
I apologize for not having been more specific.

Indeed you answered my query. I wanted to know which ones were physically located and your answers
were super. Thank you again.