Carl Hoffman

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Wingtip to Wingtip at 45O mph! 3O Feet Above the Ground! Sideways!
Nuclear Waste Repository

Nuclear Waste Repository

Burj Dubai

Burj Dubai

Strait of Messina Bridge

Strait of Messina Bridge

Palm and the World Islands

Palm and the World Islands

Trans-Atlantic MagLev

Trans-Atlantic MagLev

Space Elevator

Space Elevator

Third Delta Channel

Third Delta Channel