It wasn't scary, but did have a lot of facts about DC buildings. Though it claims it is better-suited for adults, this is actually a great tour for families with children under the age of 10 who are visiting and know nothing about the city. Better to skip if you're local as it is an overview of basic facts and well-known stories about LOC, the capitol building and some other places.
The tour was way too long, clocking in at nearly two hours with zero frights to pass the time.