Two "Anonymous" work on anti-Scientology signs.

NYPD officers brief a group of "Anonymous" on the escorted route from Bryant Park to the Church of Scientology New York building.

"Anonymous" cross Sixth Avenue. A police car (far right) blocks traffic while the group passes.

On the way to the Church of Scientology building, some "Anonymous" post fliers. This flier asks readers to Google Lisa McPherson, who a Scientologist "Anonymous" alleges was killed by the church's actions. "Anonymous" chose McPherson's birthday as the date for the protests.

"Anonymous" pass through Times Square.

NYPD officers watch the cordon as "Anonymous" protest across the street from the Church of Scientology New York building.

Traffic passes between the "Anonymous" protest and the Church of Scientology building.

Church of Scientology New York President John Carmichael watches the "Anonymous" protest.

Several "Anonymous" wore Guy Fawkes masks to hide their faces, a common theme at "Anonymous" protests.

"Anonymous" hold up a "Longcat" sign, based on a popular Internet meme.

Between 200 and 300 "Anonymous" attended the New York protest.