Host Kevin O'Connor visits the National Mall to see how the National Park Service is finishing up nearly 10 years of renovation at the Lincoln Memorial. Back at the project house, master carpenter Norm Abram finds the house has been almost completely gutted. General contractor Mahyar Mahvi had hoped to save many of the floors, studs, millwork, and plaster—but water damage had ruined them beyond salvage. In the basement, the news is better—a new slab has been poured, electrical service has been updated, and the new water service is underway. Out at the street, master plumber Robert Major replaces the 3/4" lead water-service pipe with 1" copper tubing. Up on Capitol Hill, landscape contractor Roger Cook meets garden designer Kevin Cordt to see how he designs beautiful, low-maintenance urban gardens on small rowhouse lots. Surprised by the radical changes at the jobsite, architect Genell Anderson has no choice but to go back to the drawing board.