The 378th Roadhouse is an hour of blues that’ll roll right over you. Mighty Mojo Prophets, RJ Mischo, Royal Southern Brotherhood, Otis Taylor, and Etta Britt help keep us moving. This hour will go by very quickly, I promise, if you just let it do its own thing. It’s definitely an hour of great new blues and another hour of the finest blues you’ve never heard.

Street artist JR made a wish in 2011: Join me in a worldwide photo project to show the world its true face. Now, a year after his TED Prize wish, he shows how giant posters of human faces, pasted in public, are connecting communities, making change, and turning the world inside out. You can join in at insideoutproject.net

There have been remarkable advances in understanding the brain, but how do you actually study the neurons inside it? Using gorgeous imagery, neuroscientist and TED Fellow Carl Schoonover shows the tools that let us see inside our brains.

Is your school or workplace divided into "creatives" versus practical people? Yet surely, David Kelley suggests, creativity is not the domain of only a chosen few. Telling stories from his legendary design career and his own life, he offers ways to build the confidence to create... (From The Design Studio session at TED2012, guest-curated by Chee Pearlman and David Rockwell.)

What can mathematics say about history? According to TED Fellow Jean-Baptiste Michel, quite a lot. From changes to language to the deadliness of wars, he shows how digitized history is just starting to reveal deep underlying patterns.

Are we born to be optimistic, rather than realistic? Tali Sharot shares new research that suggests our brains are wired to look on the bright side -- and how that can be both dangerous and beneficial.

As we’ve done for the past several years, we’re looking to some of the winners of the Blues Music Awards held in Memphis this week. Joe Bonamassa, Samantha Fish, Charlie Musselwhite, Ruthie Foster, and Eric Bibb are but a few of the winners who light up the 377th hour of The Roadhouse. It’s an award-filled hour of blues in this edition and another hour of the finest blues you’ve never heard.

Oops! Nobody wants to see the 404: Page Not Found. But as Renny Gleeson shows us, while he runs through a slideshow of creative and funny 404 pages, every error is really a chance to build a better relationship.

There are people who can quickly memorize lists of thousands of numbers, the order of all the cards in a deck (or ten!), and much more. Science writer Joshua Foer describes the technique -- called the memory palace -- and shows off its most remarkable feature: anyone can learn how to use it, including him.

How do we consume data? At TED@SXSWi, technologist JP Rangaswami muses on our relationship to information, and offers a surprising and sharp insight: we treat it like food.

In this epic overview, Michael Tilson Thomas traces the development of classical music through the development of written notation, the record, and the re-mix.

The 376th Roadhouse is filled with music from all regions of the US - North, South, East, and Midwest. Hollywood Blue Flames, Mud Morganfield, Mannish Boys, Cash Box Kings, and Pinetop Perkins will put you in a chair-dancing mood. It’s not an hour of blue blues, it’s an hour of upbeat blues, and it’s an hour of the finest blues you’ve never heard.

The circumstances of our lives may matter less than how we see them, says Rory Sutherland. At TEDxAthens, he makes a compelling case for how reframing is the key to happiness.

As you surf the Web, information is being collected about you. Web tracking is not 100% evil -- personal data can make your browsing more efficient; cookies can help your favorite websites stay in business. But, says Gary Kovacs, it's your right to know what data is being collected about you and how it affects your online life. He unveils a Firefox add-on to do just that.

Reuben Margolin is a kinetic sculptor, crafting beautiful pieces that move in the pattern of raindrops falling and waves combining. Take nine minutes and be mesmerized by his meditative art -- inspired in equal parts by math and nature.

In this intimate talk filmed at TED's offices, energy theorist Amory Lovins lays out the steps we must take to end the world's dependence on oil (before we run out). Some changes are already happening -- like lighter-weight cars and smarter trucks -- but some require a bigger vision.

How do you make a great public space inside a not-so-great building? Liz Diller shares the story of creating a welcoming, lighthearted (even, dare we say it, sexy) addition to the Hirshhorn Museum in Washington, DC.

It’s another week of The Roadhouse, and, of course, another hour of great blues surprises. With more than 80% of the tracks in the hour ahead released in the past three months, you’d be hard pressed to find fresher blues anywhere else. Geoff Achison & The Souldiggers, Curtis Salgado, Matt Woods & The Thunderbolts, Walter Trout, and Oli Brown pave the road with blues of all styles and hues. The Roadhouse hour 375 is clearly another hour of the finest blues you’ve never heard.

When Nancy Lublin started texting teenagers to help with her social advocacy organization, what she found was shocking -- they started texting back about their own problems, from bullying to depression to abuse. So she's setting up a text-only crisis line, and the results might be even more important than she expected.

Eduardo Paes is the mayor of Rio de Janeiro, a sprawling, complicated, beautiful city of 6.5 million. He shares four big ideas about leading Rio -- and all cities -- into the future, including bold (and do-able) infrastructure upgrades and how to make a city "smarter."