[問卦] 台北城的甕城區有什麼功用?
https://ibb.co/Q89p4Qb
這個是清代台北城東門的圖
想問一下
正式城門之外,會有個半圓形凸起城區
這個甕城區,有什麼功用?
如果敵人先突破外甕城門
殺進來這個地方,會發生什麼事?
-----
Sent from JPTT on my Samsung SM-A5460.
--
※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 49.216.128.95 (臺灣)
※ 文章網址: https://www.ptt.cc/bbs/Gossiping/M.1706682426.A.327.html
推
01/31 14:28,
3月前
, 1F
01/31 14:28, 1F
噓
01/31 14:28,
3月前
, 2F
01/31 14:28, 2F
→
01/31 14:28,
3月前
, 3F
01/31 14:28, 3F
推
01/31 14:28,
3月前
, 4F
01/31 14:28, 4F
→
01/31 14:28,
3月前
, 5F
01/31 14:28, 5F
推
01/31 14:28,
3月前
, 6F
01/31 14:28, 6F
推
01/31 14:28,
3月前
, 7F
01/31 14:28, 7F
推
01/31 14:29,
3月前
, 8F
01/31 14:29, 8F
推
01/31 14:30,
3月前
, 9F
01/31 14:30, 9F
推
01/31 14:34,
3月前
, 10F
01/31 14:34, 10F
推
01/31 14:36,
3月前
, 11F
01/31 14:36, 11F
→
01/31 14:36,
3月前
, 12F
01/31 14:36, 12F
推
01/31 14:36,
3月前
, 13F
01/31 14:36, 13F
推
01/31 14:38,
3月前
, 14F
01/31 14:38, 14F
→
01/31 14:38,
3月前
, 15F
01/31 14:38, 15F
推
01/31 14:46,
3月前
, 16F
01/31 14:46, 16F
推
01/31 14:57,
3月前
, 17F
01/31 14:57, 17F
推
01/31 15:01,
3月前
, 18F
01/31 15:01, 18F
推
01/31 15:02,
3月前
, 19F
01/31 15:02, 19F
推
01/31 15:21,
3月前
, 20F
01/31 15:21, 20F
→
01/31 16:00,
3月前
, 21F
01/31 16:00, 21F
推
01/31 16:09,
3月前
, 22F
01/31 16:09, 22F
推
01/31 16:52,
3月前
, 23F
01/31 16:52, 23F