Unlike some of her Pop contemporaries, her engagement with surface is anything but superficial, inviting meditation.

To manufacture thousands of airplanes for its World War I allies, the United States would fell acres of spruce.

The bomb markings on World War II–era aircraft are "victory marks" and signify successful missions and defeated enemies, and ...

Although fewer companies fly the skyward tow ads, those who do claim business is booming and data backs them up.

Although fewer companies fly the skyward tow ads, those who do claim business is booming and data backs them up.

Historians credit Arnold Sidney Butler, a New Hampshire entrepreneur who operated a small airport in Merrimack, New Hampshire, with creating the first tow banner ads just before World War II.