A time capsule in Texas contains a passbook to a bank account expected to be worth $1 quadrillion by the time it opens in 2968.
The Helium Centennial Time Columns Monument was built in 1968 in honor of the 100th anniversary of the discovery of helium. One of the time capsules sealed on the monument is set to open 1,000 years from that date and has a passbook to a bank account with a $10 bill.