- [Dan] A secret vault, you cannot go. I feel like this is something
out of "Indiana Jones". - Hello Mr. Lincoln. (dramatic tone) (whimsical music) Welcome back to "What's Inside". I'm Lincoln, this Dan, and today, we're going to see
what's inside Mount Rushmore. - Well, really what we're gonna see is what's inside of Lincoln's head, which a lot of you guys have
asked for for a long time, but it's not this head, it's
gonna be that head up there. No, for real. Did you know that behind Mount Rushmore there's actually a secret vault? We've done a lot of videos
with the National Parks. We've done the Lincoln Memorial, we've done the Washington Monument, we've done the World War Two Monument, we've done the Hoover Dam, and there are so many cool
National Parks and monuments all around The United States, and they're public lands,
they're your lands. You can visit these
things, and you should. Get outside and visit these things, but today we're gonna take you somewhere that if you come here
you actually cannot go. The first thing we're gonna
do is check out my shoes, we're gonna be hiking. Lincoln, did you bring your hiking shoes? - Yes. - [Dan] Those do not
look like hiking shoes. They're gonna work though? - Yeah, they're totally gonna work. - (laughs) It's gonna be an adventure. Let's do it. (dramatic music) So this is part of the presidential trail. There's the heads up
there, there's the trail, and the presidential trail is something that you
can do when it's open, which it is open right now. We'll go up the presidential
trail for awhile, and then we're gonna go
dark, and go top secret, and go up the secret trail. There's a lot of security up here, so if you're watching this video I would suggest don't try to
do it because they are armed. (dramatic music) Right now we are off of the trail, this is the area that the
public is not allowed to go to. We are hiking up to the top. This is an undisclosed part of the trail, we're not allowed to show you 'cause we don't want you
ever trying to do this. (alarm) One thing I was surprised by, when we first pulled
up I didn't feel like, I don't want to offend anybody here, but I didn't feel like the heads were as big as what I imagined them to be as we were driving in, but I'll tell you, the
closer that I get to them the bigger they look and I
am more and more impressed that they actually built
this thing up here. Okay, I caught my breath,
let's keep on going Lincoln. - [Lincoln] Okay. (dramatic music) - Okay, that was a bigger hike
than I thought it would be, but we're here. We are right now behind the head, like literally right there. Abraham Lincoln's head - - Is right there. - I can't show you 'cause
there's lots of security stuff. You want to see how big this thing is? Here we are. Welcome to The Hall of Records. This is the secret vault that
is behind Mount Rushmore, or what's inside Mount Rushmore. This took them about a year
to build in the late 1930's. Gutzon Borglum, that's a hard one to say, he's the one that came up with the idea to have this right here, this giant vault. The idea was to take the
Declaration of Independence, The Constitution, The Bill of Rights, like all of the important
government documents, have them right back here as a record so thousands of years from now, possibly millions of years from now when humans are not on the earth anymore, if somebody came here, they saw these presidents,
they came back here they would find a record of the defining moments of
The United States of America. From 1776 to 1908 or something like that. - That part that I'm very curious about is what is this small wooden box? - What's inside the wooden box? Hopefully it's a tunnel
through Abraham Lincoln's head, or like "National Treasure", this is where all the treasure is hidden. - Whoa, what? It's just, what? - Under this granite capstone
there is a titanium box. In the titanium box is a teak wood box, and in the teak wood box there are 16 porcelain
enamel entablatures. The texts of the
Declaration of Independence, the Constitution, the Bill of Rights, and the Gettysburg Address, and the history of Gutzon Borglum, the history of the workers,
who the workers were. - He said on this that, "The wind and the rain will wear it away", but it's gonna take a long time till the wind and the
rain can go down in there. (explosion) - [President Roosevelt]
Ten thousand years from now if we can meditate and wonder
whether our descendants, because I think they'll still be here, what they will think about us. And let us hope that at least they will give
us the benefit of the doubt that they will believe that
we have honestly striven, in our day and generation, to preserve for our descendants
a decent land to live in and a descent form of
government to operate under. - It is time to go inside
The Hall of Records behind Mount Rushmore,
inside of Mount Rushmore. It's a little scary, I'll be honest, this is a giant granite rock structure, and they just drilled a hole
in there back in the 1930's. - [Lincoln] Whoa, it just keeps going. - [Dan] This is so cool. - [Lincoln] I thought it
was just like right here. Oh my gosh. (Dan laughs) - [Lincoln] This is so far back. - We're going inside. We're going deep inside
The Hall of Records. Whoa. How far back are we? - We are about 7650 from
the Hall of Records Canyon. Up on the walls here you
can see the tool marks. The workers placed a tool, drilled at this depth all along this area. - To make a hole this
big, stick dynamite in it and then it just kinda
tumbles down along here, gravity helps them out a bit, then they take it and throw it out. It's the same process that
they used for the actual faces. Now, back there is the most basic, the first where you get
the biggest chunks out, and then when you come further down you can see the part of
the refinement process. It's a little rougher right here, but then when you come to
the opening you can see almost what the final
product should have been if they would've continued
making this in the late 1930's, but this one is a lot more smooth. You see all the different
holes everywhere, they made it super straight, which is incredible that
it's actually that straight. - So here they're within
roughly three inches or so of what was gonna become
the finished product. This area's been bumped. - [Dan] Oh wow, it looks
like that's more natural, but that's actually been bumped. - This is as smooth as
a concrete sidewalk. - [Dan] All of the
steps, the honeycombing, everything leads to this,
and then straight up. - We are at the top right now. - Look at this. This is Washington's head right here. See how round it is on the top? Oh my gosh, we've got to see Lincoln, we've got Lincoln over here,
we need to see Abraham Lincoln. So there's one spot, this
is a very exclusive space. We need to be safe and not fall. We have to keep six
feet away from the edge. Lincoln, sit down right there,
just sit down and scoot. Sit, sit, yep, okay. Okay, let me come on this side. - [Lincoln] Yes. Oh, hello Mr. Lincoln. - [Dan] Lincoln, meet Lincoln. - [Lincoln] Hello. - [Dan] Dude, you're on it. That's his nose right there. - [Lincoln] This is so cool. And then there's
Jefferson right there too. There's his nose. - [Dan] My gosh, that is a
big old nose from up here. For many, many years they had fireworks here at Mount Rushmore, until 2009 and they stopped having them. They're going to come back and they're gonna come back in a big way. This July 3rd here at Mount Rushmore, they have an amphitheater down below, they're renovating it right now getting it ready for the
big group of people to come, but they're going to have
a huge fireworks show. In fact, right by The Hall of
Records where we just were, where we saw that cave and
we saw The Hall of Records, that's where they're going to
be lighting off the fireworks, and a couple of other places up here. So, very, very cool. If you're anywhere in the
area, and you can get tickets, I'm not sure how the
ticketing process works, but fireworks at Mount
Rushmore on July 3rd? - With that background with the fireworks, that's gonna be so cool. - That sounds pretty darn
American if you ask me. So yeah, this is amazing. This is amazing. - [Lincoln] Wow. - [Dan] Look at that. I can't believe we're on top
of Mount Rushmore right now and even though the general public can't come up here to the top of it, or to see The Hall of Records, you can still come visit
this National Monument and come to the National Park. And every night during the summer they have a special ceremony
where they light up the faces. You can even do a drive by tour. You can drive through and some of the roads
are aligned perfectly. Whose faces would be on
the next Mount Rushmore? That's a good question. Let us know on the comments. Let us know what other
National Park or monument that we should visit
and show you inside of. Thank you to the National Parks Service for letting us come here. Incredible experience. - [Ranger] "Let us place there, carved high, as close to heaven as we can, the words of our leaders, their faces, to show posterity what
manner of men they were. Then breathe a prayer that
these records will endure until the wind and rain
alone shall wear them away." - [Dan] Okay, we made it back
to the presidential trail and we had a casualty. Lincoln, what happened? - I slipped down a rock, and then with this arm I
tried to stable myself, and then I went like that. - [Dan] That whole front thing
is busted around the side. Those do not look like hiking shoes. They're probably gonna work though? - Yeah, they're totally gonna work. - Do not wear yeezys hiking,
otherwise this happens. It works kind of, I mean the face is off, but I can still see. I'm still recording you Lincoln. Let's see if the zoom works. Oh yeah, that's solid. Still works. Man, we're rookies at this. It's been like months since
we've been on video, okay. Borglum? Claire came with us on this
trip too, if you didn't notice. Get outside and visit these things. (fireworks exploding)