On the Strip:

Bellagio Conservatory & Botanical Gardens: A stunning free attraction with elaborate floral displays that change seasonally. 

Fountains of Bellagio: Witness the iconic water show choreographed to music and lights, with daytime and nighttime performances. 

High Roller: Enjoy panoramic views of the city from the world's tallest Ferris wheel. 

The LINQ Promenade: Stroll along the promenade, check out 3-D murals, and enjoy live entertainment. 

Walk the Strip: Explore the themed resorts, soak in the vibrant atmosphere, and discover unique attractions within each hotel. 

Shopping: Visit the numerous malls and shops on and off the Strip, including Fashion Show Mall. 

Shark Reef Aquarium: Discover diverse marine life in a captivating underwater world.

Beyond the Strip:

Fremont Street Experience:
Experience the Viva Vision light show on the overhead canopy, ziplining, and street performers in downtown Las Vegas. 

The Neon Museum:
.Explore a collection of iconic Las Vegas signs in a unique outdoor setting. 

Red Rock Canyon National Conservation Area:
.Hike, bike, or drive through the stunning desert landscape with its unique rock formations. 

Hoover Dam:
.Take a guided tour of this engineering marvel on the Colorado River. 

AREA15:
.Immerse yourself in an interactive, immersive art and entertainment complex. 

The Mob Museum:
.Discover the history of organized crime and law enforcement in America. 

Seven Magic Mountains:
.Visit this public art installation featuring colorful, towering rock sculptures. 

Ethel M Chocolate Factory and Cactus Garden:
.Enjoy free tours and sample delicious chocolates, then explore the beautiful desert garden. 

Valley of Fire State Park:
.Hike among the red sandstone formations and enjoy the scenic beauty of this state park. 

Visit these websites for more information about free things and other things to do: 
Visitlasvegas.com
Paigemindsthegap.com
Thetravelingtraveler.com
Blog.cirquedusoleil.com
Vegas.com
Getyourguide.com
Viator.com