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

See how this ginormous, Texas-sized treehouse came to life!

Pete is excited to be making AJ's wish come true with a Boxtrolls-themed treehouse, but his wish is granted as well when he gets to train with local firefighters.

The crew traveled to Michigan to build a surprise treehouse for a very lucky wife.

Pete gives you a tour of this whimsical, magical, Boxtrolls-themed treehouse built especially for AJ.

While the team works hard on a Frank Lloyd Wright styled treehouse, they realize they haven't seen Pete in a while.

Watch the special Boxtrolls-themed treehouse come together - in super speed! - thanks to many helpful hands.

Susan Gallagher attended one of Pete's treehouse workshops and now wants a treehouse of her own to retire to. They find the perfect spot in a spruce they've named Zeus.

Check out this montage of all the weird noises that come out of Petes mouth while he's busy building treehouses.

Pete takes a final tour of the incredibly imaginative structure built for the kids of Camp Southern Ground in Georgia.

Pete takes a ride to a treehouse he built 15 years ago. The owner Bruce has some serious concerns about a deck expansion he recently did and needs Pete's help.

Pete picked up a few new skills from international tree builders, in particular how to set up a "Brazilian necklace" in order to keep moisture from seeping into a treehouse built around a tree.

Watch how Pete and his time brought this English cottage-inspired treehouse to life!

It takes some clever thinking and innovative interior design to furnish a treehouse high up in a tree.

Everyone loves a good metaphor, right? Pete tries to connect the water wheel, inspired by Swiss Family Robinson, and the commitment of marriage.

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Pete and the crew teamed up with Zac Brown and Camp Southern Ground on an incredibly imaginative hangout for kids.