What Do All Of These Cities,

have in common?

 Jakarta, Indonesia, Lagos, Nigeria, Houston, Texas, Dhaka, Bangladesh, Venice, Italy, Virginia Beach, Virginia, Bangkok, Thailand, New Orleans, Louisiana, Rotterdam, The Netherlands, Alexandria, Egypt, Miami, Florida, the answer, by 2100, most if not all may well have disappeared! due to increasing sea levels whilst others are just sinking, so why not raise them? and it has been done before, above Street Raising on Lake Street between Clark and LaSalle Streets, 1850s, illustration credit: Encyclopedia of Chicago, after outbreaks of cholera, a decision was made to place sewers under the city of Chicago, the entire city had to be raised from four to fourteen feet (one to four meters) tall to increase drainage from the city surface, jacking up Chicago took over two decades, but it did not disturb daily life, and I am sure at the time so many said it was impossible, so there is a choice, relocate entire cities or perhaps jack them up.