This icon represents a monument. It is a building with 4 levels and a round top. It precedes to get smaller from the bottom to the top ended with what looks like a ball on top.
This Monument icon is made in Material Design style
developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 5,500 icons, all in the same style and quality.