The Roman Empire lasted 1,000 years. The Empire expanded north to Scotland, south to Egypt, west to Spain and east to what is now Iraq.
France has many Roman ruins including this three arched bridge built 2,000 years ago near Village of Bonnieux in Provence.
Pont Julien Bridge is 215 ft. long.
The inverted keystone at the top center of the arch is where the stacks meet and their weight holds them in place without mortar.
Detail how the stones fit together and will not move sideways.
too bad thIngs aren't made to last like that anymore. great pics
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