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.

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

John Frank Stevens engineered one of the greatest engineering wonders of the world, the Panama Canal.

Frédéric Auguste Bartholdi was on the cutting edge of a new construction technique while constructing the Statue of Liberty.