My wife and I recently traveled to the caribbean for a friend's daughter's wedding (and to celebrate our 25th anniversery. I snapped a couple of photos which go under the heading: How are they still standing?
Feel free to add to the list.
(http://thumb3.webshots.net/t/64/464/7/2/50/2996702500101950283MnsMpP_th.jpg) (http://travel.webshots.com/photo/2996702500101950283MnsMpP)
The photo is from El Morro in Puerto Rico. The piece of the fort in question hangs out over the Atlantic Ocean, so is quite battered by the elements. I love the winch straps holding it together. Wouldn't want to be working on it though!
(http://thumb3.webshots.net/t/64/464/6/65/51/2367665510101950283BfZNus_th.jpg) (http://travel.webshots.com/photo/2367665510101950283BfZNus)
We had lunch in this shed on the island of Dominiqa. If I got the story straight, they were still rebuilding from a 1979 hurricane. Note that the walls don't extend down to the block, and the whole roof structure is held up by 6- 2 x 4's. No overengineering here.
I like the rebar there for future expansion. This is also typical all over Mexico. Always planning ahead. :)