7. Chesapeake Bay Bridge-Tunnel
The Chesapeake Bay Bridge-Tunnel is a true feat of engineering, stretching an astonishing 17.6 miles across the mouth of the Chesapeake Bay. Opened in 1964, it combines lengthy bridge spans with underwater tunnels to overcome daunting geographic barriers, connecting Virginia’s Eastern Shore with the mainland. This unique blend of design solutions made it a model for complex infrastructure worldwide, and it remains a vital transportation link and a testament to American ingenuity.
