What can you find far beneath the Earth's surface? You may be surprised to find out that several countries around the globe have actually built several structures underground, some of which are thousands of meters below the surface! This infographic from Alan's Factory Outlet takes a look at the deepest underground structures in the world, which includes underground laboratories, mines, caves, subway stations, swimming pools, railway tunnels, and even hotel rooms! Speaking of hotel rooms, the deepest one is the Mine Suite at the Silvermine Hotel in Sala, Sweden, as it's 155 meters below the Earth's surface! Another interesting fact is that the four deepest mines on Earth are all located in South Africa.
The deepest is the Mponeng Gold Mine in Gauteng, South Africa, which sits approximately 4,000 meters beneath the surface. The deepest artificial point on Earth is the Kola Superdeep Borehole, which is located in the Pechengsky District in Russia, sitting at 12,262 meters below the surface. This was done in an attempt to drill as far as possible into the Earth's crust.