Hotel Habana Libre - formerly Havana Hilton - commandeered by Fidel in 1959 and made party headquarters for first few months of the revolution.
The historic Hotel Nacional built in 1930 in art deco style to mimic the Breakers Hotel in Palm Beach, Florida. It hosted the largest ever conference of N.American Mafia hoods under the guise of a Frank Sinatra concert in 1946.
Lovely colonial-style houses in Vedado
Famous Che mural on side of the Ministerio del Interior - "Hasta la Victoria Siempre"
Plaza de la Revolucion, memorial to Jose Marti, Cuba's original revolutionary.