1. A+ Rome

2. Mount Vesuvius

3. An Italian archeologist in the late 1800s noticed that the bones they recovered from Pompeii were all from “hollow” areas. He decided to fill these hollows with plaster and when they chipped them out, they found they were the molds of the actual bodies of the people who had died. The above photo is a mold of a dog that had been tied up prior to the eruption

5. Water could be “slightly diverted but could not be stopped once it began its journey on the aqueduct---that is why there were so many fountains and bathes in Rome---the water had to go somewhere! Although the “arches” of the aqueducts are the most famous, most of each aqueduct was actually tunneling through the ground.

6. Natchez Trace Parkway Bridge (Still using arches!)

8. Photos from flickr