Sandstone Cliffs in Zion National Park - Utah. Zion’s sandstone cliffs—in hues of creams, pinks, and reds—reveal clues to the geologic events that were important in shaping this national park, the first established in Utah, USA.
A unique geological phenomenon known as Danxia landform. Observed in several places in China. This example is located in Zhangye, Province of Gansu. The color is the result of an accumulation for millions of years of red sandstone and other rocks.
The Reed Flute Cave, Guilin, Guangxi, China It is a natural limestone cave with multicolored lighting and has been one of Guilin’s most interesting attractions for over 1200 years. It is over 180 million years old. I really want to see this in person!