World's Largest Time Capsule

Seward, Nebraska, United States

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The World's Largest Time Capsule, as it is commonly called, is a 45-ton, 20-by-8-by-6-foot concrete vault in Seward, Nebraska. Seward writer and historian Harold Davisson was behind it, and it was dedicated on July 4, 1975, to be opened after 50 years. His daughter estimated it held over 5,000 items. The vault was opened in 2025, and its contents were shown to the public on July 4, 2025.

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World's Largest Time Capsule

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Approximate location · 40.910° N, 97.097° W

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The story

In Seward, Nebraska, a 1975 Chevy Vega that Harold Davisson's daughter says had zero miles was sealed into the ground for fifty years.

Visit Nebraska describes the World's Largest Time Capsule as a 45-ton, 20 by 8 by 6-foot concrete vault, the brainchild of Seward writer and historian Harold Davisson, dedicated on July 4, 1975. A 2025 local report called it what is considered to be the "World's Largest Time Capsule". NBC reported that the World Record Academy once called it the world's largest, and that after the family lost the record, a pyramid was added on top to recapture the title.

Davisson's daughter said in 2025 that he was concerned his grandchildren would not remember him, and wanted to preserve the culture of 1975 for them. The local report said letters from people in Seward and around the world were sealed inside, and that the vault lay roughly five feet below ground level beneath a concrete pyramid.

The vault was opened in 2025, and its contents were shown to the public on July 4, 2025, fifty years after it was sealed. NBC listed letters and packages, pet rocks, artwork, a teal suit and the Vega, and quoted Davisson's daughter saying paper and cardboard items had mold on the outside. She told NBC there were packages from, as she put it, about 3,000 people. Nebraska Public Media reported pea-green carpeting and dozens of murals and signatures inside the crypt. Davisson's daughter estimated more than 5,000 items in all.

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WHAT TO EXPECT

Permanent buried concrete vault/monument at the former House of Davisson site in Seward, NE; contents were unearthed and displayed for the July 4, 2025 opening.

ACCESS

Former House of Davisson site, Seward, NE (America's Official Fourth of July City).

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