Just as beautiful today as when it opened in 1883, the Brooklyn Bridge didn't officially get its name until 1915.
Illustration by Haasis & Lubrecht, courtesy Library of Congress
layers of gases surrounding a planet or other celestial body.
water-tight chamber that opens at the bottom and contains enough pressurized air to conduct underwater work.
large settlement with a high population density.
serious condition resulting from gases forming tiny bubbles in the bloodstream as a body adjusts to a major change in atmospheric pressure. Also known as DCS, divers disease, and the bends.
the art and science of building, maintaining, moving, and demolishing structures.
nickname for New York City; the five boroughs are Brooklyn, Queens, Manhattan, the Bronx, and Staten Island.
structure on which a building is constructed.
type of hard, igneous rock.
person who moves to a new country or region.
person who travels by walking.
metal made of the elements iron and carbon.
to hang from an elevated structure.
bridge with its deck hanging from cables strung between towers.
something used to represent something else.
movement of many things, often vehicles, in a specific area.
group, often used for a military grouping.
device used for transportation.
having to do with cars or other automobiles.