"A 45-ton, 20 x 8 x 6-foot concrete vault filled with some 5,000 relics, remembrances and reminders," says the Visit Nebraska.

"Dedicated on July 4, 1975, the brainchild of the late Seward writer and historian Harold Davisson is scheduled to open in 2025."

"Just outside of Lincoln, on an unassuming road, in the Southeast part of Nebraska, you’ll find a big pyramid-shaped object next to a sideways zigzag protruding from the ground. This is the world’s largest time capsule. And you won’t believe what’s inside!

"So what is inside the world’s largest time capsule? It’s said that over 5,000 items are buried within, including a Kawasaki motorcycle, a leisure suit, bikini bottoms, letters from local parents, soda bottles, tapes, records, bowling pins, fireworks, and a scholarship fund," the Silly America says.

"The pièce de résistance, though are the two cars: a brand new (well, at the time) Chevy Vega buried in the original plot and another used vehicle, either a 1975 Datsun or Toyota, that was added with the tomb addition in 1983."

"The capsule was sealed on July 4, 1975, to be opened on July 4, 2025. And Harold Davisson got his wish: the 1977 Guinness Book of World Records certified his time capsule as the largest in the world," the Roadside America says.

"Harold Davisson, however, was not a man to lose an argument -- or even settle for a draw. In 1983 he built a SECOND time capsule, directly over the first, sheltered within a poured concrete pyramid. Now there could be no question as to whose time capsule was the largest. The pyramid also served as a roof to keep water away from the original, subterranean capsule (Harold's fear of a leaky crypt was prudent, given what has happened to the contents of other buried time capsules).

"Within the pyramid, Davisson entombed a SECOND CAR: a beat-up 1975 Datsun or Toyota -- no one can remember which -- "to show what our society does to a car in ten years" according to Trish. Also inside are "piles and piles of telephone books" and packages assembled by local citizens as gifts to posterity. "The man was eccentric," Trish said, "but he was a future-thinker, and he did the right thing."

"Harold Davisson, a local business owner and historian, wanted to be sure the year 1975 would forever be remembered...so he buried pieces of it underground in a 45-ton vault," the Only In Your State says.

"Wanting to capture a realistic and complete snapshot of life at the time, he included more than 5,000 items that he thought would be significant to his descendants. Among them are a leisure suit, letters from local people and from people around the country, a brand-new Kawasaki motorcycle, and a brand-new Chevy Vega. Yes, there's a 1975 car in that underground vault.

"Inside the big pyramid sits a beat-up 1975 car, meant to show what society does to a car in 10 years (or maybe Davisson couldn't bear to lock away another brand new car?). There are also stacks of phone books and packages put together by local people to be examined by a future generation."

"Built by a local eccentric, this attraction can proudly boast to be the world's largest time capsule," the Road Trippers says..

"Encased inside are such artifacts as a car, phone books, and other offerings made by the locals. This is a must stop for the eccentric in everyone, not to mention the curious cat in all of us."

"While most time capsules have been the results of some sort of committees or organizations assembled to carefully select the contents based on some manner of criteria about what future people may find interesting, this largest time capsule, buried in a concrete vault in Seward, Nebraska, was the project of one man, Harold Davisson, and the main goal was to find a way for his grandkids to remember him," the Jalopnik says.

"Davisson was a local celebrity and businessperson, and in 1975 built the vault under the lawn of his home furnishings and appliance store. He filled the vault with some pretty idiosyncratic things, including a leisure suit with decorative yellow floral stitching, some panties, a teflon frying pan, a Kawasaki motorcycle, and, what I’m interested most in, a brand-new yellow Chevy Vega.

"For some reason, the capsule is also filled with “piles and piles of telephone books,” making the contents of this time capsule feel a little more like a sad, abandoned self-storage unit as opposed to a grand Message to the Future."

"A time capsule is a historic cache of goods or information, usually intended as a deliberate method of communication with future people, and to help future archaeologists, anthropologists, or historians. The preservation of holy relics dates back for millennia, but the practice of preparing and preserving a collection of everyday artifacts and messages to the future appears to be a more recent practice. Time capsules are sometimes created and buried during celebrations such as a world's fair, a cornerstone laying for a building, or at other ceremonies," the Wikipedia says..

"According to time capsule historian William Jarvis, most intentional time capsules usually do not provide much useful historical information: they are typically filled with "useless junk", new and pristine in condition, that tells little about the people of the time. Many time capsules today contain only artifacts of limited value to future historians. Historians suggest that items which describe the daily lives of the people who created them, such as personal notes, pictures, videos and documents, would greatly increase the value of the time capsule to future historians.

"If time capsules have a museum-like goal of preserving the culture of a particular time and place for study, they fulfill this goal very poorly in that they, by definition, are kept sealed for a particular length of time. Subsequent generations between the launch date and the target date will have no direct access to the artifacts and therefore these generations are prevented from learning from the contents directly. Therefore, time capsules can be seen, in respect to their usefulness to historians, as dormant museums, their releases timed for some date so far in the future that the building in question is no longer intact."

"In 1975, Harold Keith Davisson decided to bury the time capsule. Davisson decided to fill his time capsule with over 5,000 items that include, a man’s aquamarine leisure suit with stitched yellow flowers, and a brand-new Chevy Vega.

"In 1983, Davisson decided to build a second time capsule right over the first time capsule under the protection of a concrete pyramid. He put a second car in the time capsule and many other things. The time capsule is set to be opened up on July 4, 2025; 50 years after its burial," the Things to Do In Seward Nebraska says..

"Directions from I-80: Turn off on exit 379. Drive north on Highway 15 for six miles into the heart of Seward. 8 blocks after the intersection of Hwy 34 and Main Street, turn right onto Hillcrest Dr. The time capsule is about two blocks down, on the left side of the road."