28. The Panama Canal
Believed to be one of the most complex engineering projects ever completed, the Panama Canal is something that everyone hears about. Still, most people don’t realize it’s slated as one of the eighth wonders of the world.
Historically, the canal dramatically increased trade, but no one appreciated the wonder until Richard Halliburton, who swam the canal in 1928. At first, people viewed the channel as a failure because the De Lesseps company filed for bankruptcy in 1889, ending the project. Many people believe over 25,000 people worked on the project.
