This isn't the only Poe home that is a museum. There's another one that I'd like to see in Richmond, Virginia, and another in Philadelphia, as well as his dorm room at the University of Virginia. Then there is his house in the Bronx, where his wife died in 1847. All of these are museums. If you are a member of the Poe Cult, there is plenty to see.
Even in Baltimore, as the museum points out, there are plenty of Poe sites:
Poe lived here on Amity Street with his grandmother, aunt, and two cousins. It was in this house that, at age 27, he married his first cousin Virginia Clemm, who was only 13. Yeah, it's a little creepy.
The Poe family tree shows the kinship of Edgar and Virginia: