TRAVELTripAdvisor names the world's top landmarksTripAdvisor has revealed the winners of its 2015 Travelers' Choice Awards for Landmarks for both the U.S. and the world. At No. 1 on the U.S. list is Alcatraz in San Francisco.TripAdvisorNo. 2: The 2. Golden Gate Bridge in San Francisco.TripAdvisorNo. 3: The Lincoln Memorial and Reflecting Pool in Washington, D.C.TripAdvisorNo. 4: The National September 11 Memorial & Museum in New York.TripAdvisorNo. 5: The USS Arizona Memorial in Honolulu.TripAdvisorNo. 6: The Empire State Building in New York.TripAdvisorNo. 7: The Statue of Liberty in New York.TripAdvisorNo. 8: The Brooklyn Bridge in New York.TripAdvisorNo. 9: Grand Central Terminal in New York.TripAdvisorNo. 10: Gettysburg National Military Park in Gettysburg, Pa.TripAdvisorAt No. 1 on the world list is Angkor Wat in Siem Reap, Cambodia.TripAdvisorNo. 2: Machu Picchu in Peru.TripAdvisorNo. 3: The Taj Mahal in Agra, India.TripAdvisorNo. 4: The Sheikh Zayed Grand Mosque Center in Abu Dhabi, United Arab Emirates.TripAdvisorNo. 5: Basilica of the Sagrada Familia in Barcelona.TripAdvisorNo. 6: St. Peter’s Basilica in Vatican City.TripAdvisorNo. 7: Milan Cathedral.TripAdvisorNo. 8: Alcatraz in San Francisco.TripAdvisorNo. 9: Corcovado and Cristo Redentor in Rio de Janeiro.TripAdvisorNo. 10: The Golden Gate Bridge in San Francisco.TripAdvisorFeatured Weekly Ad