1 - Balloonfest ’86 was a 1986 event in which the United Way of Cleveland in Ohio set a world record by releasing almost one-and-a-half million balloons.
2 - The massive FBI's fingerprint files, 1944
3 - The old “Telefontornet” telephone tower in Stockholm, Sweden, with approximately 5,500 telephone lines c. 1890.
4 - The man who modeled as Uncle Sam poses in front of the iconic poster, 1970
5 - Dr. Leonid Rogozov operating himself to remove his appendix in Antarctica, 1961
6 - Samuel Reshevsky, age 8, defeating several chess masters at once in France, 1920
7 - A high rigger cuts the top off a tree as his colleagues watch from below. c. 1920.