Most impressive man made structures

Things I've seen. After doing this I realized it was boring and I spend more time in nature and haven't seen a lot of cool stuff
  1. La Sagrada Familia
  2. Hoover Dam
  3. Coliseum in Verona
  4. Holy Cross Church in Sedona
  5. 7 Mile Bridge
  6. Statue of liberty
  7. The Bean (Chicago)
  8. St Louis Arch
    (stock photo)
  9. Golden Gate Bridge
  10. Brooklyn Bridge
  11. Empire State Building
  12. Grand Central Station
  13. Disney Castle
  14. Fenway Park
  15. Texas Stadium