each ep takes place in a different country, with a different society and political climate.

Set in a amusement park

It's the last city on earth, surrounded by walls, and after that, giant monsters

In a world where everyone lives in these walking domed cities 

Set in a bar in the afterlife. One of the things that makes the setting cool is how isolated it is from everything. Just a bunch of bars, in the afterlife.

On a future earth where there is no land and everyone lives on these enormous conglomerations of ships

Setting changes a bit, but the first one is a town where they raise dragons for the military. Also cool art style and unique plot, if  rather slow

A completely dark world without a sun, except for one star hanging above the capital. The closer you get the more light there is and the better the people live.

A costal town, split in two, with one half above the water, populated by normal humans and the other half below, populated by people who can breathe underwater.

A prison anime?!

Would be a vanilla fantasy world, but instead of medieval cities it's got this Aztec temple sort of thing going on.

A spin off of an older anime, it's set in the 60s and 70s. Vietnam war era.