The city's new underground railway has cut commuters' travel time in half.

Many 19th-century accounts refer to the underground railway as a courageous, covert network that guided enslaved people north to freedom.

The battalion concealed the massive railway gun in a forested ravine to shield it from aerial observation.

Many cities are investing in modern underground railways to reduce traffic congestion and curb carbon emissions.

The museum's exhibit on atmospheric railways drew crowds fascinated by Victorian engineering.

The engineers restored the abandoned atmospheric railway, whose motive power had come from a partial vacuum acting on a piston running in a sealed tube.

The city's new elevated railway reduced commute times and improved air quality by cutting traffic congestion.

The city's elevated railways hummed with the sound of morning commuters.

Many rack railways still operate in alpine regions to carry passengers and supplies up steep inclines.

The engineers inspected the ancient cog railways that wound steeply up the mountain.