🇺🇸 United States · Hydraulic works
Bloede Dam
Bloede Dam was a hydroelectric dam on the Patapsco River in Maryland. Built in 1906, it was the first submerged hydroelectric plant—that is, the power plant was housed under the spillway.
🇺🇸 United States · Hydraulic works
Great Stone Dam
The Great Stone Dam, also called the Lawrence Dam or Lawrence Great Dam, was built between 1845 and 1848 on the site of Bodwell's Falls on the Merrimack River in what became Lawrence, Massachusetts.
🇺🇸 United States · Ancient village
Chaco Pueblo Bonito Room 33 Burials
Neolithic to Iron Age (6000 BCE–500 CE) · Neolithic
Chaco Pueblo Bonito Room 33 Burials in New Mexico, Chaco Canyon, United States is a Neolithic to Iron Age (6000 BCE–500 CE) ancient village attributed to Neolithic.
🇺🇸 United States · Archaeological wonder
Camera Obscura (San Francisco)
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 · Hillfort
Ard-Wall Camp
Nazca (100 BCE–800 CE) · Nazca
Ard-Wall Camp in Ohio, United States is a Nazca (100 BCE–800 CE) hillfort attributed to Nazca culture.
🇺🇸 United States · Ancient village
Hohokam — Snaketown Ballcourt and Platform Mound
Hohokam Pioneer to Classic (300 BCE–1450 CE; Snaketown I 700 CE) · Hohokam (Gila)
Gila Snaketown excavated by Haury 1964–65, ballcourts 700 CE, shell Etched, canal 160 km Hatt.
🇺🇸 United States · Megalith
Bighorn Medicine Wheel
Late Prehistoric 1200–1700 CE · Plains Indians
24 m medicine wheel 28 spokes, solstice alignments.
🇺🇸 United States · Earthwork
Ingomar Mound
Middle Woodland Miller culture 100–600 CE · Miller (Woodland)
Isolated conical mound 25 ft/7.6 m high, 70 ft/21 m diameter, tallest extant Woodland mound in north Mississippi.
🇺🇸 United States · Hydraulic works
Chesapeake & Delaware Canal
The Chesapeake & Delaware Canal (C&D Canal) is a 14-mile (22.5 km)-long, 450-foot (137.2 m)-wide and 35-foot (10.7 m)-deep ship canal that connects the Delaware River with the Chesapeake Bay in the…
🇺🇸 United States · Mound
Chauga Mound
The Chauga Mound (38OC1) is an archaeological site once located on the northern bank of the Tugaloo River, about 1,200 feet (370 m) north of the mouth of the Chauga River in present-day Oconee…
🇺🇸 United States · Earthwork
Hopewell Ceremonial Earthworks
Hopewell Ceremonial Earthworks are a World Heritage Site in the United States preserving eight monumental earthworks constructed by the Hopewell tradition.
🇺🇸 United States · Temple complex
Great Stupa of Dharmakaya
The Great Stupa of Dharmakaya, officially the Great Stupa of Dharmakaya Which Liberates Upon Seeing, is a Buddhist temple located at Drala Mountain Center in Colorado, in the United States.
🇺🇸 United States · Rock art
Newspaper Rock Petrified Forest Panel South
Upper Palaeolithic to Iron Age (30000 BCE–500 CE) · Multi-period rock art
Newspaper Rock Petrified Forest Panel South in Arizona, Petrified Forest, United States is a Upper Palaeolithic to Iron Age (30000 BCE–500 CE) rock art attributed to Multi-period rock art.
🇺🇸 United States · Earthwork
Poverty Point Mound B Summit
Formative to Mississippian (1500 BCE–1500 CE) · Woodland–Mississippian
Poverty Point Mound B Summit in Louisiana, West Carroll Parish, United States is a Formative to Mississippian (1500 BCE–1500 CE) earthwork attributed to Woodland–Mississippian.
🇺🇸 United States · Archaeological wonder
Snaketown Ball Court 1
Multi-period (4000 BCE–1000 CE) · Multi-period
Snaketown Ball Court 1 in Arizona, Snaketown, United States is a Multi-period (4000 BCE–1000 CE) archaeological wonder attributed to Multi-period.
🇺🇸 United States · Mound
Rowan Mounds
Mississippian (Wolf Lake–Douglas) · Mississippian (Southern Illinois)
Southern IL Mississippian hamlet (1000–1300 CE) on Cache River — two platforms at Cairo Lowlands margin.
🇺🇸 United States · Mound
Hayes Mounds
Late Mississippian (Dyer phase) · Mississippian (Reelfoot)
Late Mississippian hamlet mound (1250–1500 CE) on Forked Deer River — palisaded 1-ha village at Dyer County.
🇺🇸 United States · Hydraulic works
High Line Canal
The High Line Canal (HLC) is a man-made waterway, used for irrigation and recreation, that serves the Denver-Aurora metropolitan area.
🇺🇸 United States · Temple complex
Sanctuary of Black Field
Late Bronze Age (1550–1050 BCE) · Late Bronze Age
Sanctuary of Black Field in Ohio, United States is a Late Bronze Age (1550–1050 BCE) temple complex attributed to Late Bronze Age culture.
🇺🇸 United States · Temple complex
Hindu Temple of Delaware
The Hindu Temple of Delaware is a Hindu temple in Hockessin, Delaware. Inaugurated in 2002, it is the first Hindu temple constructed in Delaware.
🇺🇸 United States · Pyramid
Dallas City Hall
Dallas City Hall is the seat of municipal government of the city of Dallas, Texas, United States. It is located at 1500 Marilla Street in the Government District of downtown Dallas.
🇺🇸 United States · Rock art
El Cerro Tome Site
The El Cerro Tome Site is a site of petroglyphs and other prehistoric artifacts near Tome, New Mexico which was listed on the National Register of Historic Places in 1996.
🇺🇸 United States · Ancient village
Montezuma Castle — Beaver Creek Original 5-Storey Cliff Palace
Sinagua (1100–1350 CE) · Sinagua (Southern Sinagua)
Montezuma excavated by Mearns 1890, no Aztec link, 45 rooms 5 tiers.
🇺🇸 United States · Rock art
Rochester Creek Rock Art — Moorehead Panel
Fremont (900–1200 CE) · Fremont (San Rafael)
Emery Rochester recorded by Gunnerson 1960s, Fremont horned shaman and migration trail.