Freemason-Document-bar

The Freemasons are known to have created a great variety of encrypted documents. Can a reader solve this one from the 19th century?

Pigeon-Cryptogram-bar

Five years ago an encrypted carrier pigeon message from World War II hit the news. So far, nobody has been able to decipher it.

Postcard-US_morse_Bar

An encrypted postcard from the 1870s is written in a strange code. Can a reader solve it?

YOGTZE-50-bar

In October 1984 unemployed German food engineer Günther Stoll died of murder or accident. Shortly before his death he had written the word YOG’TZE on a piece of paper. Neither the reason of Stoll’s death nor the meaning of YOG’TZE has ever been found out.

Schleswig-Holstein-Cryptogram-bar

An encrypted message from 1939, sent from the German battleship Schleswig-Holstein to an address in Kiel, Germany, waits to be solved. Can a reader help?

Lee-Cryptogram-bar

In April 1862 Civil War general Robert E. Lee received an encrypted note from a Joseph E. Johnston. According to the library that owns this document, the encryption is unsolved.

Postcard-Stand-Rock-bar

A postcard from 1909 bears an encrypted message and an unusual spelling of a remarkable rock. Can a reader solve these mysteries?

Powers-Cryptogram-bar

The best-selling novel “The Gold Bug Variations” from 1991 contains an encrypted dedication. It has never been deciphered.

Copenhagen-cryptogram-bar

For decades, members of the American Cryptogram Association have tried to decipher an encrypted note found in Denmark – but to no avail.

Erba-Murder-bar

In 2006 a couple from Erba, Italy, murdered four neighbors. An encrypted letter from this criminal case is still waiting to be solved.