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America’s Most Visited Landmarks, 2014

Source: Gettysburg Cemetery (Wikimedia Commons), Golden Gate Bridge (Jeff Chiu for Associated Press), Alcatraz…

Olympic Preview: Canoe/Kayak

First Olympic Appearance: 1924 by Gerry Brown and Mark Zurlo Related Links Olympics Overview 2012Canoeing Winners of the 2008 Summer OlympicsCanoe Slalom Winners of the 2008 Summer…

Gülek Boğazi

(Encyclopedia) Gülek Boğazi: see Cilician Gates.

DK Science: Digital Electronics

ANALOGUE – SIMPLE BUT RISKYSAMPLINGELECTRONIC CALCULATORLOGIC CIRCUITSFIND OUT MOREThe simplest kind of electronics, known as analogue electronics, works with continuous signals – a smoothly rising…

Kobuk Wild River

(Encyclopedia) Kobuk Wild River: see Gates of the Arctic National Park and Preserve.

Tinayguk Wild River

(Encyclopedia) Tinayguk Wild River: see Gates of the Arctic National Park and Preserve.

Alatna Wild River

(Encyclopedia) Alatna Wild River: see Gates of the Arctic National Park and Preserve.

John Wild River

(Encyclopedia) John Wild River: see Gates of the Arctic National Park and Preserve.

North Fork of the Koyukuk Wild River

(Encyclopedia) North Fork of the Koyukuk Wild River: see Gates of the Arctic National Park and Preserve.

San Francisco Landmarks

by Liz Olson photos by Carol M. Highsmith A city rich in culture and diversity, San Francisco sits on a hilltop overlooking the Pacific Ocean. Millions have entered San Francisco Bay in…