One such material is asphalt, a substance often placed on top of buildings and used to cover road surfaces.

VOA: special.2010.03.02

Or visitors can drive a twenty-nine kilometer long road, stopping off at different points to enjoy the colorful formations.

VOA: special.2009.04.15

The females make huge webs, sometimes large enough to hang between trees on either side of a rural road.

VOA: special.2009.10.30

The students developed a device for cars to collect information on road conditions, driving behavior and traffic incidents.

VOA: special.2011.07.18

It combines a tax cut for employers and spending for road projects in an effort to reduce unemployment.

VOA: special.2010.02.27

He decided to tie one end of the road to what remained of a tree in the ground.

VOA: special.2009.01.24

Nikki Grimes is a children's writer and poet whose works include "Jazmin's Notebook" and "The Road to Paris."

VOA: special.2009.10.12

It means to travel or to leave a place, as suggested in this song, "Hit the Road."

VOA: special.2009.09.20

We have entered a private road that leads to the main house on the Biltmore Estate.

VOA: special.2009.11.16

He sat down at the side of the road and wrote a telegram to Secretary Stanton.

VOA: special.2009.12.24

The government agreed to close a road used by whites to cross the hunting grounds.

VOA: special.2010.04.01

They built a large road from Boulder City to the area of the dam.

VOA: special.2009.08.12

"And now,with this report, we have a very solid road map that we need to make these goals real, to solve this problem within a generation.

VOA: special.2010.06.07

a young man called out cheerfully. "How far is it to the main road?"

VOA: special.2010.04.03

You can drive your car slowly up a rough road to the top.

VOA: special.2009.07.20

Visitors to Hoover Dam drive on a small road that passes Lake Mead.

VOA: special.2009.08.12

"Worst. The worst was also the funnest, 'cause I got up early Thanksgiving day and we went to the Burwick Marathon, but it's a nine-mile road race.

VOA: special.2009.11.23

He says it occurred to him one day that he should make a road trip to help the needy.

VOA: standard.2010.07.06

A police convoy heading to Kandahar for the offensive was attacked eight times by insurgents on the road.

VOA: standard.2010.06.16

"If it is a yes it will remove one of the last remaining obstacles on the road to ratification of the treaty,".

VOA: standard.2009.10.02

But,on Thursday, the 61-year-old Taylor rejected the allegations of a prosecution witness who said Taylor had transported arms to Sierra Leone by road.

VOA: standard.2009.07.31