I was there on opening day of Expo 70. I lived in Tokyo while stationed there in the US Army. It was almost time for me to return home and I had holiday time before it was time to leave. My girlfriend suggested we take the Bullet Train to Nagoya to visit. Then on to Osaka for the opening of Expo 70. Spent 4 wonderful days there exploring the exhibits. My grandson is now taking Japanese in high school and planning a trip to Japan next year with his class.

(Translated by Google) The time capsule, which was built for the 1970 Osaka Expo, is buried 8m below ground, one to be inspected every 100 years, and 15m below ground to be opened 5,000 years later. The inspection one was opened in 2000, and the next in 2100. (Original) 1970年の大阪万博を機に設けられたタイムカプセルは、この地下8mに100年毎に点検されるカプセルと地下15mに5000年後に開封されるカプセルが埋設されている。点検用のものは2000年に開封され、次は2100年に開封される。

You have pretty much nothing to do here but look at the time capsule. You should go directly to the castle instead.

(Translated by Google) The time capsule will be opened after 5000 years. There is romance. (Original) このタイムカプセルは、5000年後に開封するそうです。浪漫がありますね。

(Translated by Google) A gift to mankind 5000 years from now! You have no way of knowing what is written? Good! I can't even imagine 5000 years from now when missiles fly! (Original) 5000年後の人類への贈り物！何が書いてあるか知るよしも無いが？良いね！ミサイル飛ばす今日この頃5000年後想像も付かんがね！

Photos taken here are Wide and have good angles

Very memorable experience as this time capsule's upper part will open every 100 years and lower part will open at 6970 after 5000 Years, it's unbelievable that they are keeping this memorable things for for such a future

(Translated by Google) I like things with dreams like this. Since 1971, it's been half a century, and 1% of the period from sealing to opening has passed. I just want Japan to be peaceful and prosperous forever. (Original) こういう夢のあるもの好き。 １９７１年からなのでちょうど半世紀、封印から開封までの期間のうち１％が経過したことになりますね。 いつまでも平和で豊かな日本であって欲しいと願うばかりです。

こんなところに、タイムカプセルがありました♪多くの人は、気づかずにスルーしていました。 『5000年後の人類へ』未来へ繋がるタイムカプセル お城🏯が数百年前に誘ってくれる浪漫とすれば、こちらは遥かな未来へ意識を羽ばたかせてくれます。 その頃、今の時代をどう語られるのかな？ 子孫はどうしている？日本は？世界は？人類は無事でしょうか⁈ ここの時空間は、不思議な感じ。。。

Great idea! Will open in the year 6970. This is also the chosen place to take pictures with Osaka Castle!

Nice idea👍👍

Lasting

This place exists to take a photo :D. Nothing else until someone opens the time capsule.