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484 places in the atlas, 33 of them inscribed as UNESCO World Heritage.
🇺🇸 United States · Archaeological wonder
Pueblo II–III Bonito 1000–1150 CE · Ancestral Pueblo (Chacoan)
Chacoan Sun Dagger butte: three slabs create dagger beam on spirals marking solstices and lunar standstill.
🇺🇸 United States · Archaeological wonder
Claimed Hopewell? 3000 BCE (natural post-glacial 10000 BCE) · Pseudo Hopewell / Glacial
Claimed 40 ft stone circle at 12 m in Traverse Bay — Michigan DEQ shows glacial lag Recorded context — Period: Claimed Hopewell?
🇺🇸 United States · Archaeological wonder
The Camera Obscura is a large-scale camera obscura, in the Lands End area of the Outer Richmond District in western San Francisco, California.
🇺🇸 United States · Rock art
Archaic to Protohistoric (7000 BP–1700 CE) · Paleoindian through Dakota
Midwest's largest petroglyph site: 4000 carvings 7000 BP–1700 CE on quartzite outcrop tracing 7000 years.
🇺🇸 United States · Archaeological wonder
The Blue Hill Meteorological Observatory in Milton, Massachusetts is the foremost structure associated with the history of weather observations in the United States.
🇺🇸 United States · Archaeological wonder
official residence of the vice president of the United States
🇺🇸 United States · Archaeological wonder
The Hopkinton Dam and Spillway is a historic site at the eastern end of Hopkinton Reservoir in Hopkinton State Park in Ashland, Massachusetts.
🇺🇸 United States · Archaeological wonder
Governor Aker Observatory is an astronomical observatory, part of Eastern Arizona College's Discovery Park Campus (formerly known as Discovery Park) in Safford, Arizona (US).
🇺🇸 United States · Archaeological wonder
The American Lighthouse Foundation (ALF) is a 501(c)(3) non-profit organization founded in 1994 with a primary mission of lighthouse preservation.
🇺🇸 United States · Archaeological wonder
building in Florida, United States
🇺🇸 United States · Archaeological wonder
The Hawaiian Volcano Observatory (HVO) is an agency of the United States Geological Survey (USGS) and one of five volcano observatories operating under the USGS Volcano Hazards Program.
🇺🇸 United States · Archaeological wonder
The Fairbanks Museum & Planetarium is a combination natural science museum, history museum, and planetarium located in St. Johnsbury, Vermont.
🇺🇸 United States · Archaeological wonder
The Bonnet Carré Spillway is a flood control operation in the Lower Mississippi Valley. Located in St.
🇺🇸 United States · Archaeological wonder
The Ashland Dam and Spillway is a historic site at the north end of Ashland Reservoir in Ashland State Park in Ashland, Massachusetts.
🇺🇸 United States · Archaeological wonder
former agency of the United States government
