Henry Grabar

Conrad

Brilliant Bike Lock of the Day: The Pole-Mounted Bicycle Elevator

A bike lock that only a monkey could pick.

Bert Kaufmann/Flickr

Time Is Currency in Spain's Cities

With plenty of time, and no Euros, some Spaniards are putting hours in the bank.

Adappt XT

Questionable Smartphone Accessory of the Day: the iPhone Shiv

Worried your new iPhone 5 will be the object of thieves? What if it came with a small utility blade?

Mark Blinch/Reuters

Denial of the Day: Rahm Emanuel Does Not Like Nickelback

350,000 students got the day off; the mayor clarified his taste in music.

Scot63US/Flickr

Disappointing Contest of the Day: America's Transportation Award

Guess what kinds of projects the American Association of State Highway and Transportation Officials decided to honor this year?

Julian Sarthou/Phaidon Press Ltd.

For the Love of Concrete

A new book aims to repair the reputation of the much-maligned composite.

Nina Boesch

Recycling Project of the Day: MetroCard Collages

A different kind of subway art.

BugASalt

Bug Fighting Invention of the Day: A Gun That Shoots Salt, Kills Flies

Pest control is now a spectator sport.

Sam Martin/Exterior Architecture

Is London Serious About Building a Network of Elevated Bike Lanes?

The city is indeed mulling an elaborate plan to hitch bike lanes along elevated rail tracks.

Ars Electronica

Robot Record of the Day: Glowing Quadrocopters Perform Giant Synchronized Flight Over Danube

Wow.

Henry Grabar

Lessons From the Nation's Biggest Architectural Toy Collection

A 20th century American childhood, all in one room.

Danny MacAskill vs. San Francisco

Video of the Day: Danny MacAskill vs. San Francisco

The Scottish trickster takes his bike crazy moves to the Bay.

Shawn Clover

San Francisco's 1906 Earthquake Sneaks Into Present-Day Photos

Then and now, all in one image.

Melissa Price

Maps of London, Minus London

There's a lot to see when you take away the street grid.

Fraunhofer Institute for Transportation

90-Foot Bus of the Day: the Fraunhofer IVI Auto Tram

I can't believe it's not a tram!

Keita Takahashi

Life-Size Video Game of the Day: Pac-Man

The ghosts are all around you at New York's Babycastles Summit.

Henry Grabar

Why Has Scandinavia's Biggest Development Project Abandoned its Master Plan?

The signature piece of Copenhagen's enormous Ørestad experiment, by Polish-American architect Daniel Libeskind, is no more.

Fliz Bike

Fanciful Velocipede of the Day: The Return of the Dandy Horse

The Dandy Horse returns with a new name and a new mojo.

StudioMK27

The Most Intriguing New Global Architecture Ideas You've Never Heard Of

The best (and worst) of the 13th International Architecture Exhibition in Venice.