Landmarks

For millennia, Stonehenge has amazed and confounded visitors and archaeologists alike. The massive awe-inspiring circle of stones was obviously important to its prehistoric builders. But what is it for? How did they build it? And why?

Yellowstone National Park became the world's first national park on March 1, 1872, when President Ulysses S. Grant signed the Yellowstone National Park Protection Act into law.

John Frank Stevens engineered one of the greatest engineering wonders of the world, the Panama Canal, but he had to overcome many challenges along the way.

Boston and New York City compete to build the first subway system, which sends ripples through the mass transit system forever.

Frédéric Auguste Bartholdi was on the cutting edge of a new construction technique while constructing the Statue of Liberty and had to overcome many engineering obstacles, in this clip from Season 1, "Liberty Rising."

Colonel Charles Young overcame racism to rise through the ranks and create his legacy in the great outdoors.

The White House is one of the great patriotic symbols of America, but its construction history gets into the darkest parts of the nation's past.

You might know that the Statue of Liberty was built in France, but how exactly did they move the 225-ton icon to the United States?

Step inside the mysterious—and possibly haunted—Winchester Mystery House.

A camping trip in 1903 might be the most influential in history! John Muir and Teddy Roosevelt spent three nights in Yosemite. Muir would convince Roosevelt to protect Yosemite, paving the way for a National Park Service.

The Washington Monument is one of the most iconic structures in the United States, but its construction wasn't always a sure thing.

Alcatraz is one of the most notorious prisons in American history, but did it really live up to its feared reputation?

The Hoover Dam, one of America's greatest engineering achievements, was almost destroyed by the Nazis during WWII.

Devil's Tower is one of the most recognizable features of the American landscape, but not everyone agrees on what it should be named.

Hailed as one of the great achievements of the 20th Century, the Panama Canal connects 160 countries and 1,700 ports around the world.

One of New York’s most famous landmarks, the Brooklyn Bridge transports 120,000 vehicles and 4,000 pedestrians every day.

Explore the geological history of the Grand Canyon, one of the Seven Natural Wonders of the World.

Get the facts about one of the world's most beautiful bridges.

How many steps are there to the crown of the Statue of Liberty? Find out that and other facts and figures about America's most recognizable symbol of freedom.

It may not have been home to the president until 1800 or even called the White House until 1901, but it remains a symbol of freedom and democracy throughout the world.

Why did some people initially think the Golden Gate Bridge was a dangerous idea?

Originally intended as a temporary installation, the Eiffel Tower has become one of the most enduring symbols of France and the industrial age.

Stretching 17 miles across the historic Chesapeake Bay, the Chesapeake Bay Bridge is a mammoth engineering feat. How long did the iconic bridge take to complete?

What do the Eiffel Tower and the Statue of Liberty have in common?

The Eiffel Tower was originally not well-liked by Parisians, but over time, it has become an iconic symbol of the city.

The Taj Mahal is a marvel of engineering that was built as a mausoleum for the wife of Mughal emperor Shah Jahan.