The Avtozavodskaya station, which was only briefly closed, quickly became an impromptu memorial for those killed, with people coming to lay flowers on the platform.

As the names were read - over large public-address speakers - impromptu memorials appeared in the streets around ground zero.

I spent the entire day at the crash site, lingering at the impromptu memorial that had risen there.

The first impromptu memorial in the cornfield opened in my father the need for more.

The fence around the church grounds became the main spot for visitors to place impromptu memorials to the event.

A small, impromptu memorial to the two boys was set up at the station by relatives in the days following the incident.

Near the place where the body was found, residents of the area have created an impromptu memorial, including stuffed animals and notes.

Without another word, the two of us spend the next minute in complete, stark silence; an impromptu memorial for one of our own.

They sat in the shade near an impromptu memorial to the girls along a chain-link fence outside the Weaver home.

Some students carried bouquets to lay at the impromptu memorials scattered across campus.