Carol M. Highsmith Archive photos from the 1980s

Louis St. Gaudens's allegorical Archimedes statue, representing the gift of mechanics, one of six on the parapet above the entrance to Washington D.C.'s Union Station

Lounge at the Fordyce Bathhouse, Hot Springs, Arkansas

Lunchtime in Pershing Park on Pennsylvania Avenue, Washington, D.C

Magical Empire, Caesars Palace, Las Vegas, Nevada

Luxor Pyramid Casino, Las Vegas, Nevada

M.I.T., the Massachusetts Institute of Technology, Cambridge, Massachusetts

Mabry Mill on the Blue Ridge Parkway and Appalachian Trail in Virginia

Luray Caverns, originally called Luray Cave, is a large, celebrated commercial cave just west of Luray, Virginia

Magic-wings butterfly in an enclosure at the botanical garden of the Museum of Life and Science, Durham, North Carolina

Luther College in Decorah, Iowa, tends to this barn, which was once a working farm museum

Magnificent pipe organ at the Mexican Cultural Institute, in the 1911 home of the MacVeaghs, Washington, D.C

Luray Caverns, Luray, Virginia

Luxurious residential bathroom

Macy's Department Store's flagship location in Manhattan, New York

Magician Lance Burton, a Las Vegas entertainment fixture, and his assistant. Las Vegas, Nevada

Magician Lance Burton, a Las Vegas, Nevada, entertainment fixture, and his assistant

Magnolia Mobil Gas station, a gathering place during the Civil Right Movement across the street from Central High School in Little Rock, Arkansas

Main house on the Kleffner Ranch, on Prickly Pear Creek, East Helena, Montana

Main Hall at Howard University in Washington, D.C

Main processing center at Ellis Island immigration station, Jersey City, New Jersey

Majestic Capitol by architect Cass Gilbert, St. Paul, Minnesota

Main Street home in Lake Geneva, Wisconsin

Main Street in Philadelphia, Pennsylvania

Maine's 1877 cast-iron Cape Neddick Light better known as the "Nubble" Lighthouse

Manship House by Carol M. Highsmith

Manse George cabin on grounds of Shiloh National Military Park, Tennessee

Mammoth Muskie at the Fishing Hall of Fame in Hayward, Wisconsin

Manassas Battlefield, Manassas, Virginia

Man painting letters on stern of paddle boat

Manor House at Belle Grove, Middletown, Virginia

Mansion on North Lake Drive, Milwaukee, Wisconsin

Mansion, tastefully decorated for Christmas in Macon, Georgia

Manor home of Shirley Plantation, Virginia's oldest plantation, founded in 1613 in Charles City, Virginia

Manor home of Laudholm Farm, built in 1860. Wells, Maine

Mansion in the King William Historic District, San Antonio, Texas

Man with a message in Houston, Texas

Mansion, Natchez, Mississippi

Man posing as Uncle Sam stands near the White House on a cold January day in Washington, D.C

Mansion, San Francisco, California

Mantle detail at the Russian Embassy in Washington, D.C

Marble House in Newport Dining Room 01

Marble House in Newport Tea House 01

Marblehead Light, Marblehead, Massachusetts

Mardi Gras doll, New Orleans, Louisiana

Marble fountain located at the Apostolic Nunciature of the Holy See, Washington, D.C

Marble House, Newport, Rhode Island

Mardi Gras Parade in New Orleans, Louisiana

Mardi Gras Krewe Captain, New Orleans, Louisiana

Mardi Gras mask, New Orleans, Louisiana

Mardi Gras tree decorated by Ms. Lucy Parlange in the living room of Parlange Plantation, New Roads, Louisiana

Mardi Gras souvenirs, New Orleans, Louisiana

Mark Twain actor gives a speech on Pennsylvania Avenue, Washington, D.C

Marina city overlook, Chicago, Illinois

Marker for southern most point of the continental U.S. in Key West, Florida

Mark Twain House & Museum has restored the author's home in Hartford, Connecticut

Marilyn Monroe's vault at the Westwood Village Memorial Park and Mortuary, Los Angeles, California

Marina, Boston, Massachusetts

Market Square condominium development under construction at the location of the city's old Center Market, Pennsylvania Avenue, Washington, D.C

Market on Calle Ocho, Eighth Street, in Miami, Florida's "Little Havana"

Markers to the Unknown Dead at Stones River battlefield in Tennessee