1. 1990s (found)
    OOPArts ★★★★★ Russia

    The Cambrian "Bolt"

    A stone found in Russia in the 1990s with what looks like a metal bolt embedded in it. It was hailed as "a part from a spaceship." Its claimed age varies from the "Cambrian" to "1.5 billion years ago," and the leading theory is that it is a crinoid fossil mistaken for a bolt.

  2. Unknown (shown in 2001)
    OOPArts ★★★★★ Ecuador

    Pyramid Eye Tablet

    A pyramid-shaped stone object about 27 cm tall said to have been found at La Mana, Ecuador. With an eye at its apex and 13 steps carved below, it looks just like the "pyramid and eye" on the dollar bill. It is said to glow under ultraviolet light, but its origin and date are unknown.