TUKWILA, Wash. - While most of us were sleeping overnight, a Seattle couple was busy moving from Tukwila to Seattle. That doesn't sound like much, until you realize they're moving an entire house. 

Tawny Davis and Ian Wilson bought a house from the City of Tukwila for $1.  It was built in 1908 and is now on a slow two-day, ten-mile trip that will include a barge ride across Lake Washington.  

The house began the first leg of its journey overnight Thursday.  Even at one-mile-per-hour, the slow-speed story is not without its drama.  The house must squeeze its way through four different cities along the route. 

A crew from National Geographic is documenting the journey and Jeremy Nickel of Nickel Brothers House Moving is supervising the whole operation through every twist and turn. 

"We've got a large willow tree that we have to negotiate as well as several primary high tension lines that are going to have to be de-energized and lifted one foot in order for us to slide underneath those lines with the building," Jeremy Nickel explained. 

The couple bought the house from the city because they didn't want to see it torn down. The move, which costs $150,000, and all the red tape involved was worth it. 

"It had to pass through four cities, so it's four different permissions that you have to get in order to do it, so it's been really challenging," said Davis. 

In addition to challenge, the house moving was described in other ways as well. 

"A very trying experience, but I'm sure it will be well worth it in the end," said Wilson.

The house has been loaded on a barge at the Renton Airport and will cross Lake Washington to its final resting place in Seattle's Columbia City neighborhood. That move starts at midnight Saturday morning.