Ruling on wearing a necklace with a picture of al-Masjid al-Aqsa or the Ka’bah

There is nothing wrong with wearing a necklace on which is a
picture of al-Masjid al-Aqsa or the holy Ka’bah, unless it has the name of
Allaah or anything from the Qur’aan engraved on it, in which case it is not
allowed to wear it because it is disrespectful, or the aim in wearing it is
to seek blessing from the picture of these places that are venerated by
Muslims. In that case it is not permissible to wear it. 

See also question no.
91370. 

And Allaah knows best.