Transfer news live: Arsenal make Kroupi move; shock Man Utd twist

Transfer news LIVE: Arsenal make Kroupi move; shock Man Utd twist; new Chelsea target; Camara to Liverpool - Follow all the ...

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

Explore the fascinating history of the Thomas Viaduct, an 1835 curved railway bridge in Maryland that defied engineering ...