I think I've got a question that even the LVA staff might have trouble finding an answer to: I was wondering, of the 35-40 million visitors to Las Vegas a year, what percent are first-timers? I'm guessing only 10-15%.

I have recently been diagnosed with celiac disease, which means that I must follow a gluten-free diet (no wheat). My husband and I will be vacationing in Las Vegas this year and I was wondering if there are any restaurants in the area that offer gluten-free items.

Back on 02/25, we ran a QoD featuring the Stardust reminiscences of LVA staff and associated. We asked for your feedback and as usual, plenty of you have responded with your memories, good and otherwise, of this soon-to-be-imploded Las Vegas landmark. Here they are.

Mike Weatherford on entertainment at the Stardust.

Last July we ran a QoD about the history of the Stardust sign -- many people's favorite example of Las Vegas neon. As part of our "Stardust Week," we're running that answer again, in an updated form, in case you missed it the first time.

The thrilling conclusion to the epic Stardust answer.

Stardust Saga, continued.

I understand the Stardust is due for implosion in March. Can you give some history on the joint? A friend of mine thought it had some connection to the Chicago organized-crime scene. True?

After visiting Las Vegas several times a year for the last 30 years, we've decided that it is time to see the Grand Canyon. We want to fly, either in a small plane or helicopter. Any recommendations? Which has the best safety record? How many companies fly the Grand Canyon? How can a person check on the safety record of each company?

How much did the Nevada casinos win in 2006? And how much of that did Las Vegas win?