China’s Shuanghe Cave has been named Asia’s longest cave, with a length of 238.48 kilometers, after an official announcement on Thursday. Many naturally formed caves on earth, like Shuanghe Cave, look like computer generated surreal sceneries. But actually, they can be found in some of the world’s most remote places in Asia, America and Europe. /VCG Photo

This tunnel-like ice cave near Chamonix, the French Alps, has been gradually formed by melting water during the summer months. /VCG Photo

Located in the Alps in Austria, this underground cave is hundreds meters beneath the surface, with water running through billions of years of rocks. /VCG Photo

The water-sculptured azure caverns in south Chile’s Patagonia can provide visitors with an incredible display of light, thanks to the way the sky reflects in the waters. /VCG Photo

The Waipu Caves feature a karst landscape, weathered rocks and a "galaxy"-like scene formed by glowworms. The caves are located in the small town of Waipu in New Zealand. /VCG Photo

Hiking across the frozen Lake, explorers can arrive at the frozen sandstone caves in Wisconsin, US. /VCG Photo

This otherworldly cave in southeast Iceland is only temporary when every year new caves are formed as the glacier they lay beneath retreats. The shadowy black sections are made up of frozen volcanic ash. /VCG Photo