City Walls and Gates

What Asset(s) would you like to see included within TaleSpire

It would be nice to have a set of assets specific to building wall fortifications around a city made of various materials.

• Wood poles for the timber fort
• Stone walls and ramparts with crenelations
• Stone or wood walkways that attach to the walls
• Gate's large enough to simulate closing a road or path.
  

There are plenty of drawing/pictures of actual walled cities:
York, UK: Friends of York Walls | Visit York Wall's Guide

Silchester Roman Walls:

Source: English Heritage

What situations would the Asset(s) be useful in?

It's a pretty common theme for fantasy towns to have city walls and gated entrances so that players can have encounters with the guards, sneak past the walls, lay siege... You can't really have an imposing city without an imposing wall now can you...

Additional Thoughts/Details

How can one call their city respectable if anyone can just walk right in?

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Note: This has been copied over from GitHub.