15. Hoover Dam (Nevada and Arizona)
> Overall score: 5.27/10 (tied)
> Avg. ticket price: $0.00
> Visitors in a year: 7.5 million
> Est. annual ticket revenue: N/A
> Google searches: 5.9 million a year
> Instagram posts as of Aug. 23, 2022: 536,963
14. St. Peter’s Basilica (Vatican City)
> Overall score: 5.27/10 (tied)
> Avg. ticket price: $0.00
> Visitors in a year: 6.9 million
> Est. annual ticket revenue: N/A
> Google searches: 1.7 million a year
> Instagram posts as of Aug. 23, 2022: 228,446
13. Angkor Wat (Siem Reap, Cambodia)
> Overall score: 5.30/10
> Avg. ticket price: $18.50
> Visitors in a year: 2.2 million
> Est. annual ticket revenue: $40.7 million
> Google searches: 4.7 million a year
> Instagram posts as of Aug. 23, 2022: 1.6 million
12. Arc de Triomphe (Paris)
> Overall score: 5.39/10
> Avg. ticket price: $5.99
> Visitors in a year: 7.2 million
> Est. annual ticket revenue: $43.1 million
> Google searches: 6.6 million a year
> Instagram posts as of Aug. 23, 2022: 1.2 million
11. Louvre Museum (Paris)
> Overall score: 5.47/10
> Avg. ticket price: $7.48
> Visitors in a year: 9.6 million
> Est. annual ticket revenue: $71.8 million
> Google searches: 3.3 million a year
> Instagram posts as of Aug. 23, 2022: 3.6 million
