Retta heads to the Northeast to uncover the region's most-hideous home. She'll question life and design decisions at a former preschool, a house shaped like a pyramid and a pink-carpeted nightmare that looks like a cat condo.

In the Midwest region, Retta tours a house dedicated to Poseidon, a pink-bricked ranch and a converted funeral home. Then it's off to the Southeast where Retta visits a balmy hangar-shaped home, a house with a sordid history and a sunken property.