Do the car rental companies in Vegas cover valet parking your car?

I have seen several posters on the message boards reference the "Christmas Tree Pass" route from Vegas to Laughlin. One poster even mentioned a waterfall. Can you shed some light on this route?

What ever happened to the Las Vegas Trolley?

We recently stayed at the Grand Desert Wyndham. We had a view of the airport. There was a HUGE plane that said "Virgin" on it. It came in in the morning and went out around 5:30 (p.m.). Could you tell us if it was a passenger plane and how many passengers it holds?

My daughter and grandbaby are coming with us at Christmas. She is 9 months old. We never rent a car, we always us a taxi or trolly. Does she need a car seat to get from the airport to the hotel and/or around town in a taxi?

Could you give a progress report on the new bridge at Hoover Dam, completion date, etc.?

Everyone discusses the best times to visit Las Vegas, but how about some info about booking your trip? How far in advance, package deals, à la carte items, etc.

On our last trip to Las Vegas, we overheard someone say that you can go from Mandalay Bay all the way to the Sahara in "air-conditioned splendor," was how she put it, meaning without stepping outside. We tried to figure out if this was possible, but we couldn't. Is it?

At McCarran airport, there's an old T-bird displayed along with a small plane that's suspended from the ceiling. There are pictures of them together decades ago, one flying the other seemingly pacing. What's the story there?

I'm going to Vegas in October and will be staying at Sam's Town from Thursday to Monday. A friend is flying in for the weekend and wants me to pick her up. I have some idea of how get to the airport, but no clue on where to pick her up. Can you help?