Approaching by foot or by car, you would not know that up ahead is one of Tokyo’s most famous historic landmarks, Nihonbashi (日本橋, or literally Japan Bridge). During Edo, it was an important wooden bridge in the center of the capital. Today, Japan’s highway network uses the bridge as the zero mile marker.

Despite its landmark status, the 1911 stone bridge is obscured by the elevated freeway. When I visited, I saw a pair of elderly Japanese tourists taking photos of themselves with the bridge. The many pedestrians and the speeding cars on street and freeway level showed no signs of recognition that this space was special.

Like many of Tokyo’s rivers, what could be natural habitat and urban attraction has become dead space. Apart from one outdoor hotel cafe, the neighboring buildings face away from the river, freeway, pillars, and exhaust.