Pushing the Bounds of Sanity

It cost Anthony Sforza $500,000 to replicate the USS Enterprise.

In Photos: Weird Buildings

'Railway Resort' On Sale
'Railway Resort' On Sale
Under Cave Cathedrals On Sale
Spaceship Arcade Home
Spaceship Arcade in Mass. Home
'The Taj' Home in Calif. Looks Like Taj Mahal
Street Cars Create Home
Mansion with Moat on Market for $10.9 Million
'Petal House' For Sale
Cave-Like Home in Alpine, Calif. For Sale
'Floating Homes' Future Up in the Air
Future of 'Floating Homes' Uncertain
Home Built Out of Missile Silo
Home Sits on Rock
Kan. Couple Live in Former Nuke Base
Cemetery Home
Replica Disney Haunted Mansion Home for Sale
Volcano House
World's Scariest Toilet: Hangs Over 15-Story Elevator Shaft
Cottage Hangs Off 7-Floor Building
Upside Down House in Borneo
House With a 'Batman Pool'
Wacky but Wonderful Homes
'Most Interesting Home in the World'
Grass-Covered House
Wacky but Wonderful Homes
Strange and Bizarre Structures
Seed Cathedral
Ice House Exemplifies Housing Crisis
Pushing the Bounds of Sanity
Strange and Bizarre Structures Palais Bulles
Strange Buildings/Longaberger Building
Minnesota Home Made of Foam
(Kimberly Launier/ABC News)
Minnesota Home Made of Foam
A little over three years ago, Ron Hietala and his wife bought this home, made of polyurethane foam, without first visiting it. Built in the summer of 1969, there is a central pillar in the middle of the home, with cables and burlap sprayed with the foam. Hietala said the foam withstands the cold and repels water. But the foam can be destroyed by ultraviolet light. The home is complete with a conversation pit and library.??Watch the full story on ABC News' "20/20" Friday, July 11 at 10 p.m. ET
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