Go behind the design of the Mt. McKinley Princess Wilderness Lodge treehouse with interior designer, Christina!

Go behind the build of the Mt. McKinley Princess Wilderness Lodge treehouse with Pete!

Fast-forward the Treehouse Masters' build in Alaska for Mt.McKinley Princess Wilderness Lodge.

Go behind the build of singer Grace VanderWaal's "dream treehouse" with Pete!

Fast-forward the Treehouse Masters' sophisticated, sleek-and-chic treehouse in the heart of Dallas.

Go behind the design of the "Birdhouse" treehouse in Wisconsin with Christina.

Watch the "Birdhouse" treehouse in Wisconsin come to life in high-speed!

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Go behind-the-build of the Jeffersonian Honeymoon Suite in Virginia with Pete Nelson!

Fast-forward the Treehouse Masters' Jeffersonian Honeymoon Suite build in Virginia.

Go behind-the-build of the "Thrill 'n' Chill" Treehouse with Pete!

Fast-forward the Treehouse Masters' double-decker hideout in Texas Hill Country.

Go behind the build of the campers' glamping retreat in New Jersey with Pete Nelson!

Go behind the build of the team's first international treehouse in Norway!

Vanessa wanted to take her 16 year old treehouse from slumber parties to cocktail parties

Before she left for college, Naomi wanted to give her nieces and nephews a place to have adventures and experience nature like she as a child

Pete is lucky he gets to work in his home state, Washington, in the Pacific Northwest often. So, it's no surprise that he might stumble across a Bigfoot in the woods where they've been known to hang out.

Fast-forward the Treehouse Masters' double-decker hideout in Texas Hill Country.

When the crew has to move a heavy dog house down a hill, Henry is nominated to be the driver.

Following Brian Kelley's suggestion of getting to know Nashville, Pete takes a tour of the city and ends up on the famed stage at the Grand Ole Opry, where he taps into history to find inspiration.

A lot of work went into this one of a kind treehouse. Explore the inside with Pete.

Because the treehouse is deep into the Pacific Northwest, Pete's team must work together and use some muscle to move two 28 foot long, 675 pound beams to the site.

The Nelson empire is expanding! The family pulls together to construct another beautiful build in a 23-acre forest wonderland.

Pete meets Brian Kelley and his wife Brittney for the first time. Pete develops a bit of a man-crush on the country superstar and relies on Brian to keep him safe from snakes while searching for the perfect tree.

While looking for the right spot to house a magical party treehouse, Pete finds the ultimate grove.

Millie is an adorable dog with an amazing talent. She can climb up ladders to help with woofing - er - roofing!

Even though he gets a faceful of homemade cupcakes, Pete is all smiles as the joke indicates that the students are having fun building a treehouse with him and his crew.

Instead of building walls, Pete relies on a fabric treehouse kit to create a room on top the treehouse, but it turns out he's not a great fabric guy.

Pete takes a closer look at the treehouse that will be hopefully the first of many on a 23-acre lot in Washington.

Go behind-the-build of the "Thrill 'n' Chill" Treehouse with Pete!

Pete takes us on a tour of the team's latest creation.

Charlie and Henry make a bet to see who can complete the stairs first. Loser has to sharpen pencils for the rest of the build.