Yes, there are many secrets of Las Vegas, and that includes homes. I've posted about Dr. Lonnie Hammargren's combined 3 homes that house his unique collection of all things Las Vegas and Nevada, that he calls the Hammargren Home of Nevada History.
So take a look at this Las Vegas home. Nothing out of the ordinary, just a nice two story stucco on a large lot.

No, nothing unusual there, right? Well take a closer look....

Looks like a typical 4 bedroom, 2 car garage....but it's got a Las Vegas secret. Take another look.

There's your clue. Figured it out yet? No, not a nice ride parked there, it's something else.....that turbine vent coming out of the ground.
Yes, this home's secret is it's covering another home, underground! No, and not a small one either, it's space is over 15,000 sf. with a 6,000 sf. home!
The original home (underground) was built in 1978 by Girard Brown Henderson who had made his fortunes with underground cable TV (Carmel, CA in 1950), Avon and later Gulfstream Aircraft to name a few. He was known as a philanthropist and created the Alexander Dawson Foundation and Schools that provide a traditional liberal arts degree. He was also interested in technology, and with cold war threats he became intrigued with underground living.
In 1964 Jerry teamed with two Plainview, Texas subterranean contractor pioneers, Kenneth and Jay Swayze, and built his first underground home at, or should I say under, his 350 acre property in Colorado. That same year he sponsored an Exhibit at the 1964 - 65 New York World's Fair for his newly formed Underground World Home Corporation and covering the topics "Why live underground?" and "How to build underground".
That company didn't turn out to be a success and was closed in a short amount of time. It didn't seem to stop Jerry from thoughts of underground living. Fourteen years later he built this lavish 3 bedroom subterranean home here in Las Vegas, equipped with full hand painted (over 3 years by TX artist Jewel Smith) panoramic murals, pushbutton lighting that changed a starry night sky into a sunrise, and an astro turfed and landscaped yard complete with waterfall, heated pool, two hot tubs, BBQ, and guest house. The interior of the home is done in retro 60's 'Austin Powers' style shag and decor, and even includes a pink marble bathroom with glowing pink bathtub! This is all wrapped neatly inside a steel shell with 10" thick concrete ceiling that is earthquake and most importantly, nuclear bomb proof......although it will hopefully never be tested to prove it.
When the home was
first built, passers by would only see a large, well landscaped desert lot. If
they happened by at just the right time, they might see a sophisticated older couple using a
remote control.......to open the 'boulder' 
Travel Channel / HGTV did a segment on the home in 2003
2003 Story in Las Vegas Mercury
Jerry B. Henderson Bio from Henderson Family Tree
I also have to wonder if the 1998 comedy "Blast From The Past" starring Sissy Spacek, Christopher Walken, Brendan Fraser, and Alicia Silverstone had at least some inspiration from this unusual Las Vegas secret abode.
If you are interested in relocating to Las Vegas or would like information on Las Vegas real estate, please email me roberta@search4lasvegashomes.com or call me at 702-354-8988

Mary: There is always something new to learn in Las Vegas.
Katerina: Blast from the Past was a cool movie.
Steve: Always something interesting in Vegas.
Since Sissy Spacek lives here in our area I will ask her next time I see her at the mall.
your friend in Charlottesville
Mark: I don't think I could live underground but it would be great to visit.
Jesse & Kathy: It is very unique!
Charles: Let me know what she says!
Linda: That would be a great idea for you in Texas.
Roberta:
Great post! I enjoyed reading it. That is very interesting. I think every city and suburb has some little secrets like that. Thanks for sharing.
Holey moley, Roberta!
This is a great post! You are INSPIRING me to hurry up and get my favorite places up and on my blog. Like my favorite French Bakery, locals spots, etc.
(P.S. -I did some checking, and I KNOW WHERE THIS IS - na nah na na!)