The DU Lounge

Coal chutes.

Upstairs floor vents to allow heat into the upstairs.

TV antennas on the roof.

A pitcher pump. I have not seen one of those inside a house for over fifty years.

A 'widow's walk' on the house. Some houses today still add them, but they are seldom accessible for actual walking.

Horse doors. (Now bear with me. My grandmother's house was pre-Civil War. It has these large doors that went from floor to ceiling in the front hallway. These doors faced each other in the widest part of said hall. They were there so the owners could bring in their horses should the weather become too cold. That way, they could just heat the house in very cold conditions. I had only seen them opened once in my lifetime, and that was to just check and see if they were still working and sealing okay.)

A 'carriage door' or 'carriage hall' on a house. This was where the people would get into the wagon/carriage under cover so that they would not get wet between the door and the carriage. Most people parked their cars under them back when I was a kid, but it only worked for smaller cars, since the space was for a horse and buggy, which are not very wide.

So much has changed since I was a kid. It sometimes amazes me.