Miners come across an unusual treasure while constructing a museum in New JerseySumedhaNovember 26, 2019historyMust ReadsMysteryNewsTravel Vastness The museum is approximately 2,675 feet deep and stretches up to 35 miles, making a walking track nearly 1300 feet long. And it’s not just zinc that you will see when you take a walk in the museum, there’s lot more than that. Next Page