The Thomas Viaduct is an arched stone railway bridge spanning the Patapsco River between Baltimore County and Howard County.
The Patapsco Swinging Bridge spans the Patapsco River in central Maryland.
The Carrollton Viaduct is a historic stone arch bridge located over Gwynns Falls in Baltimore.
The Hanover Street Bridge, officially known as the Vietnam Veterans Memorial Bridge, spans over the Middle Branch of the Patapsco River.
The Bollman Truss Railroad Bridge is a landmark of industrial design and construction.