United States rooms

Channeled Scablands Basalt coulees cut by ice-dam floods that returned again and again, a hypothesis fought for decades, and a single-catastrophe reading weighed against the beds.
Chinook and Adena head shaping Forehead boards on the Columbia and cradleboards in Adena graves, set beside the claim that some of these skulls grew that way, so you can weigh both.
Runestones in America Stones in Minnesota, Oklahoma, Maine, and Rhode Island carry marks read as Norse runes. The famous slab dates itself to 1362. A Norse camp in Newfoundland, dated to 1021, has no runes in its published finds.
Mystery Hill Stone chambers on a New Hampshire hill, a nineteenth-century farm, and charcoal dates that prove a fire more easily than they prove a builder.
Paisley Caves Cave dung with Native American founding DNA, directly dated more than a thousand radiocarbon years before Clovis.
Meadowcroft Rockshelter A sandstone overhang above Cross Creek, with hearth dates older than Clovis and an old argument that coal made them lie.
Newark Earthworks A lunar octagon and a great circle of the Hopewell centuries, inscribed for the moon and still argued as a coincidence of numbers.
Serpent Mound An earthen snake lies on the rim of an impact crater, dated two ways, and a solstice sightline that still will not choose the century.
Cahokia A city of mounds opposite St. Louis, with a timber circle aimed at the sun and a population that is still being counted.
Chaco Canyon In a dry canyon, great houses and strikingly straight roads still stand, and on Fajada Butte a dagger of light once crossed a spiral before the stones shifted.
Calico A Mojave alluvial fan cemented about 200,000 years ago, full of flaked chalcedony that may be tools or may be the fan itself.
The Younger Dryas impact A real cold snap at 12,900 years ago, and an impact hypothesis weighed on spherules, platinum, nanodiamonds, and the Carolina Bays.
Three Rivers petroglyphs More than 21,000 pecked images cover a basalt ridge of the Jornada Mogollon, with a solstice-shadow claim the site’s own account does not make.
Topper A chert quarry on the Savannah River, with a Clovis level in place and a deeper scatter that may be tools, or the hill breaking its own stone.
White Sands footprints Human tracks cross a dried lake bed, dated with aquatic seeds and then checked against pollen and luminescence.
Cerutti Mastodon Mastodon bones from a San Diego freeway cut date to about 130,000 years, and the breaks are read either as hammerstones or as the road work itself.
Poverty Point Six ridges and a bird-shaped mound, raised by hunter-gatherers, and a solstice proposal that was tested and then withdrawn.
Watson Brake Eleven mounds and low ridges in an oval, dated about 5,400 years ago, long before the great earthworks downriver.
Murray Springs A Clovis hunting camp sealed under a dark wetland layer, and the impact claim that layer was later asked to carry.

Offshore

Rooms in the sea off this coast. Each one is a pin on the world map once the chart is enlarged. They are gathered in the Drowned Lands wing.

Beringia. The land bridge to Siberia, now the Bering Strait and the shelves beside it.
Florida drowned sites. Page-Ladson in the Aucilla, and the sites on the drowned Gulf shelf.
Bimini Road. A run of limestone rectangles in shallow water off North Bimini.
Drowned Lands. The wing that gathers the Ice Age shelves.