What is unique about the waterfall found in Guiyang, China?

Here is the question :

WHAT IS UNIQUE ABOUT THE WATERFALL FOUND IN GUIYANG, CHINA?

Here is the option for the question :

Made of saltwater
Descends from skyscraper
Bright pink color
Flows in reverse

The Answer:

And, the answer for the the question is :

Descends from skyscraper

Explanation:

[STC0015460]. The Liebian International Plaza is located in the Guizhou region of China. It is a mixed-use skyscraper that incorporates an artificial waterfall that cascades down its side and is 354 feet tall. Each hour that the waterfall is active, an additional $118 is added to the cost of the building’s electricity bill. The water collects in a tank at the base of the structure, which then uses it to begin the cycle again. It is one of the man-made waterfalls that holds the record for height.