This poem, by Lewis Carroll, can be read line by line in the conventional way, but the same text results when it’s scanned “downward” in columns, reading the first word of each of the six lines, then the second, and so on:

I           often     wondered    when     I         cursed

Often       feared    where       I        would     be --

Wondered    where     she'd       yield    her       love,

When        I         yield,      so       will      she.

I           would     her         will     be        pitied!

Cursed      be        love!       She      pitied    me ...