The Most Expensive Dress Ever!

The dress mentioned was own by the Queen of France in 1610, when she was the queen consort for King Henry IV of France. Her name is Marie de' Medici, she's not French, but she was the member of famous Italian family, Francesco I de' Medici, Grand Duke of Tuscany and she the sixth daughter of the family. As wife of Henry IV, queen of France. Like most French royals, she had expensive tastes in clothes. So much, in fact, that she almost bankrupted France with her extravagance.

The dress that she wore above contain 3,000 diamonds in that very one dress. Of course, at that time diamonds were valued less than pearls. But she had 39,000 tiny pearls in that dress. It cost the equivalent of $20 million dollars in 1606. She wore it once. Marie’s son, Louis XIII, ruled France from 1612 to 1617 but they were exiled 1631. Marie died in poverty.

World's Quietest Room

Steven Orfield, president of Orfield Laboratories, stands in the anechoic chamber in Minneapolis that's been dubbed by Guinness as being the world's quietest room. 

The room, which holds the Guinness World Record designation, is located in the Orfield Laboratories. The recording studios where "Funkytown" and Bob Dylan's "Blood on the Tracks" were recorded are also in this building.

The world's quietest room is called an anechoic chamber, which means there is no echo as it absorbs sound. Sound doesn't bounce off the walls the way it does in a regular room.

A typical quiet room you sleep in at night measures about 30 decibels. A normal conversation is about 60 decibels. This room has been measured at -9 decibels.

Orfield Labs uses the room to test products, including switches that go on car dashboards and the sound an LED display makes on a cell phone to make sure they're not too loud.

To get into the anechoic chamber, you go through two bank vault-like doors. The floor in the room is mesh like a trampoline so there's nothing on the floor for the sound to bounce off of. The walls are lined with sound-proofing wedges that are a meter long so they absorb the sound.

"When you sit in any rooms a person normally sits in, you hear the sound and all its reflections," said Steven Orfield, president of Orfield Labs. "When you go into an anechoic chamber, there are zero reflections. So if you listen to me talk and hear my voice, you're hearing my voice exactly. And if I turn around and talk, the only thing you'll hear is the sound bending around my head."