There are a handful of homes in the game that have multiple entrances/exits. When you select these homes on the map, you are only given one option to travel to the outside of the home. In most cases, this doesn't matter. For instance, Sleek Creek House's entrances are so close to each other that you can see both at the same time from the proper angle. However, there are a few homes where being able to select your exit would be useful.

Fogbreak Lighthouse: This home shows up on the northern shore of High Isle, and that's where it drops you if you travel outside. However, there is a second entrance/exit to this home on the southern shore of Galen. There is no icon on the Galen map for this (it's near the Old Growth Brewer crafting stations). As there is no other home available for purchase in Galen yet, it would be exceedingly useful to be able to travel there without having to pass through the home first. Especially since the boat that takes you to Galen is quite a hike from the main entrance.

Sweetwater Cascades: This home hugs the border between Blackwood and Northern Elsweyr, and has an entrance connected to each. Similar to Fogbreak Lighthouse, the icon for the house appears on the Blackwood map but not Northern Elsweyr, and traveling to outside the home will deposit you in Blackwood. This one isn't quite as bad, though, since the two exits are right next to each other within the home.

I think both of these cases could be solved by putting a home icon at the currently unmarked entrance from the second zone, and allowing travel inside the home from either icon, while choosing the travel outside option would put you at the entrance for the zone map you are on. If you click on it from the full Tamriel map, you could be given three choices (inside, and outside in each zone).

Stone Eagle Aerie: This is a unique home that has an exit directly into the Markarth Outlaws Refuge. However, you can only travel inside, or outside the entrance from Markarth itself. How awesome would it be to jump directly to an Outlaws Refuge from nearly anywhere in the game?