10 Archaeological Mysteries of the United States You May Not Know About

8 Berkeley Mystery Walls, San Francisco, California

Known also as the east Bay Walls, the Berkley Mystery Walls are stone walls running in a rough path through the Bay of California all the way from Berkley to San Jose. No one knows how they got there and their purpose. The structures have gaps at intervals and at one point form ornamental spiral patterns. They were noticed by early Spanish settlers and the local Ohone Indians who reported seeing them. The Berkley walls still remain one of the biggest archaeological mysteries of the USA.

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9 Miami Circle, Miami, Florida

The Miami Circle was discovered recently in 1998. It was existing beneath a Florida Apartment complex and was discovered after the apartment was knocked down by a developer. The circle consisted of a circular pattern of holes in the limestone bedrock. Excavation at the site also revealed artifacts and tools similar to those used by the Tequesta People and dated back 3000 years old. The site is now owned by the Florida state and is protected from developers.

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10 Hemet Maze Stone, Hemet, California

The intriguing Hemet Maze stone consists of a single carving and is a three-foot square with an intricate interlocking maze pattern. The mystery behind the Hemet stone is the swastika pattern which is a religious symbol found only in Hindu and Buddhist art. The rock was vandalized in the 20th century and is now visible only from a chain link fence. The Maze stone is among the biggest of archaeological mysteries in the USA and is yet to be accurately explained how it got there.

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