After Four Months, a Frank Lloyd Wright House in Glencoe, Illinois Goes Back on the Market

Most architecture nerds would be thrilled to live in an original Frank Lloyd Wright house, and occasionally, they get their chance—as long as they’re willing to pay a few million dollars. As of late 2017, there were Frank Lloyd Wright homes for sale in New York, Minnesota, Ohio, Connecticut, and elsewhere for $1 million dollars or more (in some cases, way more). Sometimes, you can find a deal, though, like the $445,000 Usonian home that went on the market in Michigan in 2016.

Sadly, as Curbed reports, a newly for-sale Wright house in Glencoe, Illinois is not such a deal anymore. Only three months after its $752,000 sale, the 1914 Kier House in suburban Chicago has been renovated and is back on the market for $837,500.

Many Wright homes need a little love after decades of use. For one thing, the architect is somewhat notorious for building leaky roofs. Their small kitchens and shag carpeting are no longer quite so desirable, either.

But for many buyers and architects, restoring a Wright home is a labor of love, one that often takes several years and aims to respect the original designer’s genius while bringing the house up to modern standards. (For some of the historic homes, permanent easements also prohibit most exterior alterations, further limiting what a remodel can involve.)

The Prairie School-style house, though it has Honorary Landmark status, isn’t entirely original to Wright. It has a more modern kitchen, a new family room, and updated bathrooms (with a steam shower!). Previous owner Susan Cowen, who owned the house for a number of years and spent an undisclosed amount on refurbishing it, sold the residence in January to a pair of documentary filmmakers, according to Patch. The sale, which included a significant price drop, only took a few months. They, in turn, made a number of improvements. The owners fixed up the chimneys, boiler, and furnace, added a limestone bar separating the kitchen and dining room, and raised part of the ceiling above the stairs.

Now, four months later, it’s on sale again, and, thanks to the upgrades, a little pricier. The latest sellers may find, though, that not every Wright sale goes as quickly as their purchase. The architect’s homes are highly prized, but also known to be very difficult to sell, sometimes languishing on the market for years before finding a buyer.

[h/t Curbed]

Mapping Technology Reveals 'Lost Cities' on National Geographic

Lin uses his iPad to visualize scanning data of a crusaders' fortress at the lagoon in Acre, Israel.
Lin uses his iPad to visualize scanning data of a crusaders' fortress at the lagoon in Acre, Israel.
Blakeway Productions/National Geographic

Imagine what Pompeii looked like before the lava hit, or Mayan pyramids before the jungle took over. In the past decade, scientists have been able to explore human settlements long since abandoned by using a new wave of accessible technology. Instead of needing an expensive plane and crew to fly aerial sensors, for example, explorers can mount them on cheaper drones and pilot them into previously unreachable areas. The resulting data can tell us more about the past, and the future, than ever before.

That’s the premise of Lost Cities with Albert Lin, a new TV series premiering on National Geographic on Sunday, October 20.

Lin, an engineer and National Geographic Explorer, uses cutting-edge tools to shed light on centuries-old cities in the most beautiful places on Earth. Ground-penetrating radar reveals buried structures without disturbing the landscape. A drone-mounted remote sensing method called LIDAR—short for "Light Detection and Ranging"—shoots lasers at objects to generate data, which Lin visualizes with 3D mapping software. The results suggest what the ruins probably looked like when they were new.

Albert Lin and crew in Peru
Thomas Hardy, Adan Choqque Arce, Joseph Steel, Duncan Lees, Albert Lin, and Alonso Arroyo launch the LIDAR drone at Wat'a in Peru.
National Geographic

“It’s like a window into a world that we’ve never had before,” Lin tells Mental Floss. “It’s shooting millions of laser pulses per second through a distance of air. By digitally removing the top layer of everything above the ground—trees, brush, cacti—you’re washing away the past. All of the sudden you’re left with these fingerprints—experiments in how we organized ourselves through time.”

For the six-episode series, Lin and the expert storytelling team were dispatched to the South Pacific, the Middle East, the Andes, the Arctic, and other destinations. Lin explains that while most of the sites are known to archaeologists, they’ve never been so precisely mapped in three-dimensional detail.

In the first episode, Lin travels to Nan Madol, an enigmatic complex of temples and other structures on the Micronesian island of Pohnpei. With the help of local researchers and indigenous leaders, Lin and the team scan the ruins and digitally erase trees, water, and forest undergrowth to unveil the complex's former grandeur.

“Technology and innovation have always been that gateway to go beyond the threshold, and see what’s around the corner,” Lin says. “Seeing these worlds for the first time since they were left, it’s almost like reversing the burning of the library of Alexandria. We can take the synthesis of knowledge of all these watershed moments of our human journey, and imagine a better future.”

Lost Cities With Albert Lin premieres Sunday, October 20 at 10/9c and resumes on Monday, October 21 at 10/9c on National Geographic.

What's the Difference Between Cement and Concrete?

Vladimir Kokorin/iStock via Getty Images
Vladimir Kokorin/iStock via Getty Images

Picture yourself walking down a city block. The sidewalk you follow may be obscured by shuffling feet and discarded gum, but it’s clearly made from something hard, smooth, and gray. What may be less clear is the proper name for that material: Is it concrete or cement? Is there even a real difference between the two words?

Though they’re often used interchangeably, concrete and cement describe different yet related elements of the blocks, flooring, and walls that make up many everyday structures. In simple terms, concrete is the name of the gray, gritty building material used in construction, and cement is an ingredient used in concrete.

Cement is a dry powder mixture that looks much different from the wet stuff poured out of so-called cement trucks. It’s made from minerals that have been crushed up and mixed together. Exactly what kind of minerals it’s made from varies: Limestone and clay are commonly used today, but anything from seashells to volcanic ash is suitable. After the ingredients are mixed together the first time, they’re fired in a kiln at 2642°F to form strong new compounds, then cooled, crushed, and combined again.

Cement
Cement
lior2/iStock via Getty Images

This mixture is useless on its own. Before it’s ready to be used in construction projects, the cement must be mixed with water and an aggregate, such as sand, to form a moldable paste. This substance is known as concrete. It fills whatever mold it’s poured into and quickly hardens into a solid, rock-like form, which is partly why it’s become the most widely-used building material on Earth.

So whether you’re etching your initials into a wet sidewalk slab, power-hosing your back patio, or admiring some Brutalist architecture, you’re dealing with concrete. But if you ever happen to be handling a chalky gray powder that hasn’t been mixed with water, cement is the correct label to use.

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