Wonders of the World Crossword Challenge

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Across
  1. 1. - Incan citadel in the Andes, often called the "Lost City" (11 letters).
  2. 3. - Iconic white marble mausoleum in India (8 letters).
  3. 4. - Enormous statue overlooking Rio de Janeiro (6 letters).
  4. 6. - Ancient marvel in Egypt known for its geometric precision (7 letters).
Down
  1. 2. - Ancient Roman amphitheater known for gladiatorial combat (9 letters).
  2. 5. - Longest wall in the world, built in China (9 letters).