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7 Major Mafia Murders [Warning: Gruesome Photos]

David K. Israel

1. Benjamin “Bugsy”

How People of the '70s Pictured Space Colonies of the Future

Brett Savage

Back in the early 1970s, when Americans were just plain wild about the (seemingly) imminent reality of living in space, a NASA design study attempted to conceptualize just how such an idea could be br

23 Animals Relaxing With Cool Summer Treats

Jill Harness

All across the country, people are hot and miserable. Perhaps this collection of adorable animals cooling off with icy snacks will help.

We're Coming to Memphis! (Who's Coming With Us?)

Jason English

Last month we announced the Mental Floss Trivia Show was headed to Columbus, Ohio, this fall. We were immediately overwhelmed with emails from Columbus-area readers.

Images and Sounds on Voyager's Golden Record

Chris Higgins

The Voyager 1 probe was launched in 1977.

Let's Paint the Town!

Miss Cellania

The term "monochrome town" evokes an image of a dreary gray industrial area. It is not always so!

Brain Game: Flay Play

It's Think Thursday once again at the mentalfloss.com Brain Game, and today's puzzle may require some noggin effort (and a scratch pad).

Morning Cup of Links: Pizza Delivery

Miss Cellania

The 3 Big Advances in the Technology of the Pizza Box. If you ever wondered what they put pizzas in before the box was invented, you'll find out in this article from The Atlantic.

The Late Movies: Rilo Kiley Have Broken Up

Chris Higgins

When news broke last week that Rilo Kiley, one of my favorite bands, had broken up, I knew it was my responsibility to introduce my fellow nerds to their music.

McDonald's Menu Items From Around The World

David K. Israel

Knowing _flossers like I do, many if not most of you have experienced McDonald's outside the U.S. because, hey, you like to travel and see the world, right?

How the Original Donruss Rated Rookies Turned Out

Scott Allen

In 1984, Donruss released what some collectors consider one of the greatest baseball card sets of all time.

History of Hip Hop (Part 2)

Chris Higgins

In late 2010, Justin Timberlake and Jimmy Fallon performed a medley of hip-hop songs starting with Sugar Hill Gang and ending with Jay-Z and Alicia Keys.

The Number of the Day: 18%

Jason English

According to the 2011 GMAC Insurance National Drivers Test, 36.9 million American drivers—18%—couldn't pass the written drivers test today. Related Fact: Kansas had the highest average score (

Amazing Pictures of Magnified Beach Sand

Jill Harness

I always knew there were a wide variety of sands, and that they were all made from worn down shells and rocks.

Color Photos of London From World War II

Jason English

Yesterday was the 70th anniversary of the launch of Winston Churchill's WWII "V for Victory" campaign. To mark the occasion, LIFE.com gathered up color photos taken in London during the