The Washington Monument was built with a mixture of sand, brick and concrete, a process called geotechnical engineering.

The monument has been known to break and fall in recent years, prompting complaints from residents and the city of Portland.

But what does it actually look like, and why are some parts so hard to repair?

It’s the subject of a new documentary called Sand Building Materials, which will air this week on The Washington Today.

In it, host Mike Rowe takes viewers inside the building where he grew up and discusses the history of sand buildings.

The documentary’s producer, Andrew Bowers, has spent years studying the building and its history, finding out about how sand is used in its construction and the ways sand and bricks are built.

He and his team took the opportunity to learn more about sand construction and why certain parts of the monument have deteriorated.

What you’ll see: What’s the history behind sand buildings?

The story is very complex.

Sand is used for many different things, from building materials to bricks and concrete to roofing.

The first buildings were built by Native Americans who would take a large quantity of sand and build the foundation of their settlement.

They then covered it with a layer of dirt, then covered that with stones and then covered the stone with sand.

The sand and stones were then stacked, and the structure was then made of wood.

Sand bricks were used for roofing, and eventually they were made from cement.

But over time, they were replaced by stone, brick, or other materials that were stronger and harder to break.

And as time went on, the building was slowly replaced with sand bricks.

The National Park Service began keeping track of the building’s history in the late 1990s.

The department now maintains records on the history and condition of sand bricks in the monument, along with the locations and dates of major repairs.

We’re using those to determine what we can do to repair the building.

The most recent sand building repairs were in 2010.

That’s when the National Park and Recreation Department began tracking the condition of the sand bricks and sand building itself.

We know that the sand building has degraded significantly, but the condition is not considered catastrophic, according to the National Parks Service.

So, we’re using that information to know how to improve the building in order to prevent it from ever being in that state again.

What do people say about the building?

When we first began filming the documentary, we wanted to know what people thought of the Monument.

We didn’t want to make it about the architecture, so we thought, why not try to get a broader perspective?

What people see is not a building that is going to be perfect, and they’re not going to get the full experience of the structure.

The people who live in the area know the building is not built to last, but they also want to know the history.

So they’re interested in the history, the architecture and the history around the building itself, said Bowers.

That made it interesting for us to take the project outside of the national park.

We wanted to see if we could get some of the people who were living in the areas around the monument and hear their opinions.

That started in the summer of 2018, when we met with people from around the area to get their perspective.

The survey revealed that a lot of people who lived in the surrounding area said they would have liked to see the building restored, but weren’t necessarily opposed to it being repaired.

What we found was that people didn’t always see the monument as the place it is today.

A lot of the criticism that people have of the architecture of the monuments are based on how it looks, and how it’s been repaired.

It’s a question of, what can we do to restore it to its former glory, rather than just putting a sand roof over it?

What you might not know about the sand buildings is that sand bricks are not as hard as you might think.

There are more than 100 types of bricks in a sand building, and some are harder than others.

Some types are made of concrete, which is lighter than sand.

Other types of sand are made from sand and gravel, which are lighter than stone.

The biggest difference is the color.

A stone brick might look brown to the untrained eye, but it could be black or white depending on the amount of sand used in the building or how much limestone was used.

Bowers said that many people don’t realize that sand brick and sand mortar is different than the concrete or stone used in many of the structures in the National Mall.

For example, the concrete used in an overpass in Washington, D.C., is called stone and is softer than sand, but not as tough.

The bricks used in concrete buildings are usually called brick, brick or concrete.

The concrete used at the National Cathedral in Washington is called concrete and is made of brick, limestone or sand.

Bower said that the building that was built on the site of the Washington Monument is an