The so-called Thames Tunnel was initially for pedestrian use ... You can still admire the northern entrance — a drum-shaped building standing, appropriately, outside Subway.

The influential 19 th-century British mechanical and civil engineer Isambard Kingdom Brunel’s Thames Tunnel ... the historic tunnel became a blockbuster pedestrian thoroughfare and tourist ...

It was once labelled the "Eighth Wonder of the World" and drew a million Victorian visitors - but the grand entrance to the Thames Tunnel became abandoned after it was closed to the public.

The previous Thames Tunnel had attracted millions of visitors after opening in 1843 as a pedestrian tunnel, but in 1869, that tunnel was running freight under the river, according to The Brunel ...

Then came the first-ever underwater tunnel, the Thames Tunnel ... thought to be the mythic "entrance to the underworld", were uncovered in Mexico. A team of archaeologists unearthed the collection ...