A collection of individual artists, galleries and shops, consider this a contemporary art museum with so much more than paintings and sculptures. The Arts Factory is where you can go to see a wide variety of art at no cost. More free things to do can be found Downtown in the Arts District. Free, interactive mermaid swims take place several times throughout the day from Thursday to Sunday in a 117,000-gallon aquarium complete with tropical fish. It's a great attraction for the whole family where the kids can have so much fun. Head over to the Silverton Casino Hotel for a chance to see mythical mermaids in real life. Be sure to make time to explore these equally fun and totally free options to help you save money on your next Las Vegas trip. Spoiler alert: There are many free things to do in Las Vegas! From the Welcome to Las Vegas Sign at the end of Las Vegas Boulevard to free shows Downtown, take advantage of the great year round Las Vegas weather to experience amazing sightseeing and people watching.