STEPHEN: Gardiner Greene Hubbard, who was a local realtor built Twin Oaks in 1888.

Hubbard's house was about 26 rooms on about 18 acres.

The grounds of Twin Oaks were left to his daughter, Mabel.

LYNN: Mabel, who was married to Alexander Graham Bell, sold the property to a couple named the Parmaleys.

They built this estate in 1911 on the top of the hill.

And this land was completely undeveloped, so they brought on Ellen Biddle Shipman as landscape architect.

The garden was intended to provide dramatic vistas of the landscape.

We do have historic photos from the 1920s, and what you see is the very lush and intimate setting.

♪ ♪ TAMARA: So when I first came to this place, we knew there was a ton of work that we had to do to make this landscape look like it did 100 years ago.

We knew that Ellen Biddle Shipman was the vision and the spirit of the place, so we referred to her plans.

And we could see the list of plants she used, but then coming back 100 years later, you see, oh, these plants didn't make it.

Or you can see, oh, these other plants look amazing.

For instance, we have this amazing stand of rhododendrons and you couldn't plant these rhododendrons today because of climate change.

It's just simply too hot.

But since these have been here for over 100 years, they have done fantastic.

LYNN: We see in the plans and in the photos that people are walking around the pond and enjoying this area.

And we wanted to make sure when we have visitors today, they have that same experience when they visit the pond.

So to revitalize the pond area, we had to make a new bottom for the pond because the water was seeping through, we had to re-armor the sides, and then we also redid the pathway around the pond.

It was initially built just for a family and now it's open to the public 24/7.

This is a place where people can gather, feel inspired by nature, feel comforted, feel a sense of togetherness.

And that's something we really work on actively creating here.