20th century travel and transportation slide scans: Area 51? Slide image taken in 1959 next to a foreboding sign in an unknown western U.S. desert - possibly on the grounds of the secret base in Nevada
20th century travel and transportation slide scans: Harvey's Hotel in Stateline, NV (Lake Tahoe) in 1965 #2
20th century travel and transportation slide scans: 1950s street scene in front of Petersen House (where Lincoln died) with period Cadillac in foreground
20th century travel and transportation slide scans: Vice President Richard Nixon rides with wife Pat in a Cadillac convertible at Pasadena's Rose Parade in 1960
20th century travel and transportation slide scans: The North Shore Beach and Yacht Club on the Salton Sea in 1960
20th century travel and transportation slide scans: A close-up view of the World Trade Center Twin Towers in 1978
20th century travel and transportation slide scans: World Trade Center South Tower lobby in 1978
20th century travel and transportation slide scans: 1959 view of UN Secretariat building from plaza
20th century travel and transportation slide scans: The former Texas School Book Depository building on Dealey Plaza in downtown Dallas, Texas in 1993
20th century travel and transportation slide scans: Ted Kennedy campaigning on Summer St. in Natick during his first run for U.S. Senate in 1962 #10
20th century travel and transportation slide scans: The Tammany Hall building on Union Square in the mid-1950s
20th century travel and transportation slide scans: The high-rise tower of the Bethesda Naval Hospital in Bethesda, MD in 1955
20th century travel and transportation slide scans: 1968 view of the front entrance of the Washington Hilton
20th century travel and transportation slide scans: 1974 street view of the Watergate complex
20th century travel and transportation slide scans: 1969 Dallas, TX Dealey Plaza scenes #1
20th century travel and transportation slide scans: 1969 Dallas, TX Dealey Plaza scenes #2
20th century travel and transportation slide scans: 1958 Roswell, NM downtown parade scene
20th century travel and transportation slide scans: 1957 view of the Alcatraz federal prison