The Economic Times

In 1835, Maryland built a curved railway bridge from 63,000 tons of granite - critics thought it would collapse, but trains still cross it today

The Thomas Viaduct, completed in 1835, stands as a testament to innovation in American railway engineering. Built with 63,000 tons of granite featuring a curved design, this bridge overcame early doubts about its strength. It was recognized as a National Historic Landmark in 1964, emphasizing its cultural importance. Today, it exemplifies how historic structures can be preserved while supporting contemporary transportation needs.