@Crys816
Your properties are beautiful and unique. The bathroom on your first listing, amazing.
Suggestion
Your ad description tells me the area and history but nothing about what you want money for the rental space. It is good to speak of apea just balance all you said was go thru this door.
The area history is great but maybe be=reate some guidebooks to tell guests.
No recent rentals to the Airbnb Search is no traffic which effects display which has a negative effect on traffic.
Ideas to get you back up.
Turn on Instabook Airbnb likes that. It is a tool you can turn on and off as you need. I when I use will change notification and minimum stay to allow me time to vet and scammers focus on 1 nighters.
You may want to offer a sale price to give yoy some traction,
On your new listing do the Airbnb New Listing Discount
Be conscious update even if minor your ads regularly. Search Engines are just machines date modified on your ad says old or new.
General Internet Search Engines read the Airbnb site because it has traffic. Certain locations like yours I would think people want to experience and explore. Generate traffic by identifying keywords an sprinkle using ad guidebooks and photo captions