New York Skyscrapers - USA, NYOUV: Rockefeller Center, Empire State Building, Chrysler Building, Flat Iron Building, ... Very little doubt in my mind that this warrants inscription. Only open question is what subset of buildings to pick.
Brooklyn Brown Stones, USA, NYOUV: "By the late 1840s, however, brownstone became the most fashionable building material for row house facades. First, brownstone reflected the mid-19th-century popularity of Romantic Classicism, which glorified picturesque Nature. (Think of the idealized landscape paintings of the Hudson River School.) Brownstone echoed the dark browns, grays and greens of the romanticized landscape."
https://www.brownstoner.com/architecture/brownstone-brooklyn-architecture-charles-lockwood/Okefenokee National Wildlife Refuge, USA, GAOUV: Hidden gem of a Southern swamp
https://www.worldheritagesite.org/tentative/Okefenokee+National+Wildlife+RefugeDisneyland, USA, CAOUV: The iconic amusement park.
History of Film - Hollywood, USA, CAOUV: The place for movies. There are still plenty of historic buildings left.
https://www.smithsonianmag.com/history/hollywoods-historic-buildings-8182087/?page=9Bryce Canyon, USA, UTOUV: Iconic stone structures. Navajo history.
"Bryce is distinctive due to geological structures called hoodoos, formed by frost weathering and stream erosion of the river and lake bed sedimentary rocks. The red, orange, and white colors of the rocks provide spectacular views for park visitors. Bryce Canyon National Park is much smaller, and sits at a much higher elevation than nearby Zion National Park. The rim at Bryce varies from 8,000 to 9,000 feet (2,400 to 2,700 m)."
https://en.wikipedia.org/wiki/Bryce_Canyon_National_ParkZion Canyon, USA, UTOUV: Navajo history. "Located at the junction of the Colorado Plateau, Great Basin, and Mojave Desert regions, the park has a unique geography and a variety of life zones that allow for unusual plant and animal diversity. Numerous plant species as well as 289 species of birds, 75 mammals (including 19 species of bat), and 32 reptiles inhabit the park's four life zones: desert, riparian, woodland, and coniferous forest. Zion National Park includes mountains, canyons, buttes, mesas, monoliths, rivers, slot canyons, and natural arches."
"https://en.wikipedia.org/wiki/Zion_National_Park
Arches National Park, USA, UTOUV: Iconic Arches and the most natural arches world wide.
"Arches National Park is a national park in eastern Utah, United States. The park is adjacent to the Colorado River, 4 miles (6 km) north of Moab, Utah. More than 2,000 natural sandstone arches are located in the park, including the well-known Delicate Arch, as well as a variety of unique geological resources and formations. The park contains the highest density of natural arches in the world.[3][4]"
https://en.wikipedia.org/wiki/Arches_National_ParkMiami Beach Architectural District, USA, FLOUV 2nd Largest concentration of Art Deco buildings in the world (after Napier, NZ).
https://en.wikipedia.org/wiki/Miami_Beach_Architectural_DistrictThe Mall of Washington DC, USA, DCOUV: Monumental government buildings lined along a central axis, the Mall.
French Quarter of New OrleansOUV: "The district as a whole has been designated as a National Historic Landmark, with numerous contributing buildings that are separately deemed significant. It is a prime tourist destination in the city, as well as attracting local residents. Because of its distance from areas where the levee was breached during Hurricane Katrina in 2005 as well as the strength and height of the nearest Mississippi River Levees in contrast to other levees along the canals and lakefront,[3] it suffered relatively light damage from floodwater as compared to other areas of the city and the greater region."
https://en.wikipedia.org/wiki/French_QuarterTo be discussed USA:* History of cars sites (Ford, Detroit)
* History of computer science sites (California)
* Appalachian Mountains or Appalachian Trail
* Maine / Acadia National Park
* Massachusetts Coast - Nantucket, Cape Cod, Cap Ann
* Museums of New York
* Mississippi Eco System
* Spanish Colonial Heritage Florida
* Dutch Colonial Heritage (if any)
* Great Lakes Eco System:
** Pictured Rocks National Park
** Apostle Islands National Lakeshore, USA
** Voyageurs