Worldwide, two-wheeled transportation is growing in popularity; depending on who you listen to, the market for two-wheeled transportation—bikes, scooters, motorcycles—is growing by 6% to 11% per year. Cities are taking note, and adding bike-friendly infrastructure. Manufacturers are also taking note, and piling into the market with new bikes and bike accessories.

This Choppy Bicycle, by Latvian design brand Stum, is made of plywood. You'll notice it lacks pedals; this bike is designed for kids who don't know how to ride a bike yet. As they propel themselves around using their feet, their bodies naturally gain the required balance.

Or maybe you don't want your kid riding a bike, because you think it's too dangerous. No prob. This Ultra Mobile Vehicle (UMV) by the Switzerland-based Robotics and AI Institute can do BMX tricks while your kid watches.

E-bikes are expensive, and not everyone wants to cough up the cash to switch over. That's probably why this Kamingo gizmo, which turns regular bikes into e-bikes, was a crowdfunding smash.

Not content with disrupting the truck market, Rivian spun off a company, Also, to disrupt the e-bike market. Their TM-B is a modular e-bike that they say has a "vehicle-grade" battery.

E-bikes need to be charged, of course. Dutch startup Tiler reckons a convenient way to do it is through the kickstand, resting on one of their charging plates.

Italian industrial designer Danilo Petta and Turkish architect Öznur Pinar Cer developed an interesting concept for charging a two-wheeler. Their Solaris concept unfurls two solar panel arrays like wings.

The barrier for starting a bike company is high, but getting into the accessories game is a bit easier. Cyclists need kit, and a rash of companies are eager to supply it. This EXO MAX bag, by German company Red Rebane, is designed to carry oversized objects.

Yet another German company, Flectr, designed this CargoMate bike rack. It doesn't look like much, but is a design feat: It can be installed in 30 seconds on any bike, without tools.

This FliteDeck is a set of bicycle handlebars with a digital dashboard. Designed by German automotive engineers, it was successfully crowdfunded through OnlyFans.

Also from Germany, manufacturer Personomic 3D prints personalized bike saddles that fit your specific butt perfectly.

Chinese tool company Hoto sells this compact and designey Air Pump Pocket.

French company Strong Locks has invented this V-160, a quick-action bike lock that automatically snaps shut.

Industrial design firm Goodwin Hartshorn designed this hide-away bike toolkit for client Brompton.

Another industrial design firm, Dutch studio APE, designed this Headfirst helmet. It has a special adjustment mechanism that allows users to achieve a perfect fit.

Meanwhile this Release Layer System helmet greatly reduces rotational forces during an impact, thanks to an inner layer of ball bearings.

For those of you who ride muddy, Canadian company Ridalco makes special sinks specifically for washing bikes (or dogs).

Here's an accessory you can't buy as a cyclist. Subaru has designed an airbag specifically to protect any cyclists that the driver happens to hit.

Here's an accessory you can buy, if you've got the money. Australian trailer manufacturer Stockman produces this Trekka 01, a camper trailer with a charging garage for e-bikes.

This unusual ride is by French company Cyclauto. They've revived a design for a cargo bike from the 1930s.

Belgian mechanical engineer Benjamin Declercq has invented an e-bike that quickly transforms into a cargo bike.

This AfricroozE bike has been designed with features specifically tailored for the African market.

This one here is more bike-adjacent: Honda's Fastport, an electric quadricycle, uses bike lane infrastructure to deliver packages.

And here's a scooter worth a shout: Chinese manufacturer Omoway is releasing this OMO X, which boasts a bold design language.

Going even bolder is Czech carmaker Škoda, who unveiled this Slavia B electric motorcycle concept.

Lastly, we took a look at some of the wild 2-wheelers created for Mad Max: Fury Road. All 47 of the bikes made for the movie ran.

This year brought its fair share of over-the-top architecture projects. Top-of-the-list is Saudi Arabia's Shebara Resort, a net-zero facility with stainless steel pod villas.

In Brazil, this VIW Building is also for people that want to be near the water. The apartments all have in-balcony swimming pools.

In Albania, Dutch firm JA Joubert Architecture and local firm UNS Architects teamed up on this Zig-Zag resort. The idea was to work with challenging terrain, rather than against it, while providing spectacular views to guests.

And this year saw the debut of this retro-futuristic building in Los Angeles. The Tesla Diner is an eatery, entertainment complex and the world's largest Supercharging station.

Over in Milan stands San Siro, Italy's largest stadium. Fans access the structure via helical walkways, and when a match lets out, it looks as if the towers are rotating:

Of course, the biggest problem architecture could help solve has nothing to do with fancy resorts and buildings. As the global housing crisis continues, Boxabl unveiled their Baby Box, a $20,000 unfolding tiny home.

In the Netherlands, Rotterdam is planning to build floating neighborhoods in response to the housing crunch.

And in Texas, Icon is attempting to provide affordable housing with their 3D-printed homes.

The company is also 3D printing houses for the homeless.

Also in Texas, which seems to be a hotspot for 3D-printed structures, German company Peri 3D has 3D-printed a Starbucks.

Meanwhile, researchers continue to find ways to execute conventional construction more efficiently. Lotte Scheder-Bieschin, a PhD student of Architecture at ETH Zurich, designed a brilliant, reusable folding formwork system called the Unfold Form. It can be used to build vaulted concrete structures that use less concrete and far less steel than conventional structures.

Over in Myanmar, bamboo is a lot easier to come by than concrete. Yangon-based architecture firm Blue Temple developed an economical system for building houses by bundling together thin pieces of bamboo. The initiative is called Housing NOW.

And in sweltering India, architect Monish Siripurapu developed a passive cooling system for buildings called CoolAnt. It uses terracotta and water as low-tech air conditioning.

In China, a company called Ombra is building pergolas that are cooled by the sun. The roofs are covered in solar panels that power the HVAC.

In Austria, researchers at the Graz University of Technology are looking into alternative wall- and floor-installation (and de-installation) methods. Their ReCon Project proposes a hook-and-loop fastening system for wall and floor surfaces.

In Sweden, Kiruna Church is one of the country's largest wooden structures. It was also in danger of being swallowed up by the earth, thanks to nearby mining activity. Thus Dutch engineering firm Mammoet was hired to move the entire building, intact, to a new location.

Some architectural landmarks have sustained damage over the centuries, and others were never completed. Thus Dutch creative team Studio Drift collaborated with drone show company Drone Stories to visually complete structures like the Colosseum and the Sagrada Familia.

Lastly and sadly, Los Angeles lost a lot of homes this year during the wildfires. We looked at the architecture choices that allowed surviving houses to remain unscathed, even as the ones next door burned down.

Here's what we looked at this week:

The Cylindric UX1 is a handsome, designey USB-C charger from Sweden.

Montezuma's Triangular Toolboxes, designed for rough transport.

Roof's Djagger, a rear-entry motorcycle helmet that you don like a mask.

Industrial design firm Intenxiv designs a more elegant airport PRM vehicle.

Germain Verbrackel's split-torus Clock & Roll concept.

A Dutch furnituremaker's specialty production machine yields better quality, with less labor.

An Industrial Design student updates a design classic, and gets a production deal.

This beautiful Ridge line of wooden door handles is by Milan-based industrial designer Keiji Takeuchi.

This Lazy Lighting app makes projection mapping easy.

Ottagona, by architect Giulia Foscari, is a designey, compact gym-in-a-closet.

The MagCable, a magnetically self-coiling charging cable, is like an old-school retractile telephone cord.

The Loop Living Cocoon is a mushroom-based coffin grown in just seven days. Unlike regular coffins, it won't poison the soil.

Artmor's Aircrate: A reusable bubblewrap alternative where you provide the air.

Specialty tools: Häfele's long range cabinet feet leveler is easier on the back.

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The American tire giant took 7,500 tires for 39 cars to the 24 Hours of Le Mans.

With AutoDesk discontinuing support for EagleCAD, non-commercial users need an economical and flexible CAD alternative.

The T16-R series from Actuonix provides advanced linear motion solutions that cater to a variety of applications.

Test automation allows developers to focus on development while allowing the quality of the product to be continuously tested and monitored.

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Trumpf says its new laser process speeds the separation of EV battery materials.

The Materialise/nTop collaboration resulted in a high-performance 3D-printed cylinder head for Wärtsilä with enhanced cooling and weight reduction.