The Ethereum Wallet is a gateway to decentralized applications on the Ethereum blockchain. It allows you to hold and secure ether and other crypto-assets built on Ethereum, as well as write, deploy and use smart contracts.
On the English side of the channel, the train departs from Folkestone in the county of Kent. It arrives into the city of Coquelles, near Calais, on the French side. The tunnel is 31 miles long, with 23 of those miles beneath the surface of the water, traveling at an average depth of 150 feet below the seabed.
The Zhongnanshan tunnel passing through the Qinling mountains in Shaanxi province of China is currently the second longest road tunnel in the world. The 18.02km long tunnel is currently the world's longest twin-tube tunnel. It was opened in January 2007 after nearly five years of construction.