Lethe alpha literally means "un-forgetfulness" or "un-concealment". Lethe, the river of forgetfulness, was one of the five rivers of the Greek underworld, the other four being Styx, Acheron (the river of sorrow), Cocytus (the river of lamentation) and Phlegethon (the river of fire). According to Statius, it bordered Elysium, the final resting place of the virtuous. Ovid wrote that the river flowed through the cave of Hypnos, god of sleep, where its murmuring would induce drowsiness. The shades of the dead were required to drink the waters of the Lethe in order to forget their earthly life. In the "Aeneid", Virgil
The Earth Suspended River The Earth Suspended River The Earth Suspended River(地上悬河） is located in the lower reaches of the Yellow River，which is a world-famous geographical landscape. Also known as 'the raised bed river', its bed is more than 3 metres higher than the ground. In some places,the water level is even about 10 metres higher than the ground. The yellow river is famous for being sandy with very high sediment concentration. Reasons are as follows: first of all, ascent of this reach is not so big. Besides, both sides of the river are open. Last but not least,the current is gentle too. Above