Verses with the word marketplace in the New Testament (3 verses):

Matthew 20:3
And he went out about the third hour, and saw others standing idle in the marketplace,

Luke 7:32
They are like unto children sitting in the marketplace, and calling one to another, and saying, We have piped unto you, and ye have not danced; we have mourned to you, and ye have not wept.

Acts 16:19
And when her masters saw that the hope of their gains was gone, they caught Paul and Silas, and drew them into the marketplace unto the rulers,