In quite a few cases the missing ships or planes were later found, mysteriously abandoned by their crews.

In the late 600s AD the ringfort was mysteriously abandoned, and it remained unused until the early 11th century.

The settlement was occupied between 1000 BC and 1400 AD after which it was mysteriously abandoned.

The cornered fugitive above had mysteriously abandoned his attack.

Empire initially helps Earth recover, then effort is mysteriously abandoned.

A pleasure ship carrying untold wealth, she had been mysteriously abandoned in space by passengers and crew, none of whom had ever been seen or heard of again.

Beta Station was established in 2039 but mysteriously abandoned around 2160.

Everything is believed to have been taken apart from Humphrys and Nicholas Parsons, who was mysteriously abandoned on an oil rig.

Though Bingham wasn't the first to see Machu Picchu since it was mysteriously abandoned in the 16th century, he brought it to the world's attention.

While Tikal began to assume a primary role in Guatemalan history around AD 250, El Mirador had been mysteriously abandoned about a century earlier.