AHYCOL_181024_151
Existing comment:
How to Move an Obelisk

Bern Dibner loved reading about remarkable feats of engineering. Swiss engineer Domenico Fontana's book describes the relocation of a 361-ton granite Egyptian obelisk over a distance of nearly two-and-a-half football fields to St. Peter's Square in the Vatican City. The task required hundreds of men and took almost a year to complete.
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