The Bellagio Conservatory & Gardens is a well-tended area adjacent to the Bellagio lobby displaying seasonal plants and flowers labeled with their botanical names. The area is free and open to the public 24/7.
On this visit, I experienced a Winter Wonderland in the middle of the desert. An approximately 50 foot tree (maybe a fir) is adorned with large ornaments and LED lights. Topiary polar bears made with thousands of carnations flank a gingerbread village. I believe the roofs were made with frosted wheaties. Whirling around the gingerbread village are two motorized trains each with a CCTV which you can view. On the opposite end of the gingerbread village are a family of skating penguins.
This exhibit is not be be missed during this holiday season. This area is transformed seasonally, so it's a must on your trip to LV.