The US Landmarks

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Across
  1. 2. An ornamental structure which jets water into the air.
  2. 3. A vast, subtropical wetland ecosystem in Florida known for its sawgrass marshes and wildlife.
  3. 5. The iconic statue in New York Harbor, a gift from France symbolizing freedom.
  4. 7. Famous waterfalls on the border between the U.S. state of NY and Canada.
  5. 9. A structure carrying a road, path, or railroad across a river, gorge, or other obstacle.
  6. 11. A public square, marketplace, or similar open space in a built-up area.
  7. 12. The official residence and workplace of the President of the United States in Washington, D.C.
  8. 14. Something, especially a structure, established to remind people of a person or event.
  9. 16. A deep gorge, typically one with a river flowing through it.
  10. 17. A statue, building, or structure erected to commemorate a famous person or event.
  11. 19. A platform on pillars projecting from the shore into a body of water.
  12. 20. A massive concrete dam on the Colorado River, on the border of Arizona and Nevada.
  13. 22. A mountain or hill with a vent through which lava, rock fragments, and gas erupt.
  14. 23. A hot spring that intermittently jets steam and hot water into the air.
Down
  1. 1. An underground or underwater passage.
  2. 4. A very tall building of many stories.
  3. 6. The building where a state legislature meets; often refers to the U.S. Capitol in Washington, D.C.
  4. 8. The stainless steel, curved monument in St. Louis, Missouri, symbolizing a gateway to the west.
  5. 10. A mountain in South Dakota featuring the carved faces of four U.S. presidents.
  6. 13. The first national park in the world, known for its geothermal features and wildlife.
  7. 15. A national park in Washington state known for its temperate rainforests and mountain ranges.
  8. 18. A building equipped with a telescope for observing celestial events.
  9. 21. A famous former prison located on an island in San Francisco Bay.