12 contenders in this category.
3rd
Senior Center of Boulder City
“A BIT ABOUT US Hours: Monday - Friday, 8am-3pm SCBC is a 501c3 non-profit organization whose mission is to enrich and enhance the lives of seniors in Boulder City, so that they can remain independent
Other Worthy Contenders
These other contenders are great, but didn't make the top 3.
Nevada State Railroad Museum
“Preserving and interpreting Nevada's railroad history for the enrichment of all who visit. Open daily; train rides on Saturdays and Sundays.