It opened in May 2026.
Nobody has written it up.

This is the most recent addition to Hiroshima's memorial estate and it is not in any printed guide you will be carrying. It is an official auxiliary facility of the Peace Memorial Museum, it costs nothing, and it explains the one thing the main museum covers least well: what happened medically in the hours and days after 8:15.

The building is a 1935 hospital wing standing 1,370 metres from the hypocentre. It survived — damaged, but standing — and became one of the very small number of places in the flattened city where medicine could still be practised. Most of Hiroshima's doctors and nurses were killed or injured in the same instant as their patients; the buildings that could still function as relief stations mattered out of all proportion to their size.

The renovation cost roughly ¥280 million and produced about 60 exhibits. A 20-minute film runs twice an hour, at :10 and :40, with Japanese and English subtitles and sign language. One rule differs from the main museum: you may not photograph or film the exhibits — only general shots of a room from its entrance — and wheeled luggage, food and drink are not allowed in.

One caution about attribution. The connection between this hospital and Dr Michihiko Hachiya, whose Hiroshima Diary is among the best-known first-hand medical accounts of the aftermath, is historically well established — but it was not restated in the official 2026 pages we checked. We are flagging it as background rather than as something the facility currently presents, and you should treat any guide who leads with it the same way.

The address is Higashi-Hakushima-cho 19-12, Naka-ku, about 1.5 to 2km north-east of Peace Memorial Park — roughly 20 to 25 minutes on foot if the weather is reasonable, which in August it is not. Everyone who assumes it is inside the park loses half an hour finding out otherwise.

By tram: change at Hatchobori to line 9, the Hakushima line, and ride it to the end at Hakushima, then a two-minute walk. That is a different branch from the line 2 and line 6 services that serve Genbaku Dome-mae, and the museum puts the trip from the Peace Park at about 40 minutes by tram. Bus No. 6 to Hiroshima Hakushima Byoin is quicker, at about 20 minutes.

Hiroden went to a flat ¥240 adult / ¥120 child fare on 1 February 2025, its first revision since 2017, replacing a ¥220 flat fare in the city and a distance scale on the Miyajima line. Since 1 July 2026 IC-card riders tap on and off. The all-day streetcar pass is ¥700, so it pays from your third ride — which is exactly what a Peace Park, castle and station day comes to.

The practical shape of a day: museum and park in the morning, this in the afternoon, and if you are riding the tram three times the ¥700 day pass has already paid for itself. See the streetcar pass page for the break-even.