ITA LETRA, PARAGUAY

EGYPTIANS IN AUSTRALIA

MINOAN PENDANT, OHIO

OMAK ROCK (I), WA

MEGALITHIC WRITING (I), ORKNEY'S

Could it be just a rock?

RATTLESNAKE DISC (MOUNDVILLE, AL)

NARRAGANSETT RUNE STONE

COPPER FROM AMERICA

SENTINEL ROCK, VERMONT

BRONZE DOORS OF REKHMIRE

METAL TRADE IN THE BRONZE AGE

INDIAN ROCK HOUSE, ARKANSAS

PREHISTORY OF AZORES (3600-1200 BC)

DISCOVERY OF THREE CONTINENTS, SARDINIA

OMAK ROCK (II), WA

MEGALITHIC WRITING (II), ORKNEY'S

CIRCLE CROSS CARVING, MI

ANCIENT STONE BALLS, MN

OIL CITY GLYPHS I, PA