The proposed transatlantic tunnel would allow travel from London to New York

The proposed transatlantic tunnel would allow travel from London to New York in just 54 minutes.

However, implementing this concept would cost a staggering $19 trillion, which is five times the gross domestic product (GDP) of the United Kingdom.

Last year, the project even received support from Elon Musk, as reported by the Daily Mail. He wrote on X (formerly Twitter) that his company, The Boring Company, could build such a tunnel 1,000 times cheaper.