The pyramid shelf is a traditional danish (but also very common in europe in 1700-1800) shelf for paraphernalia. The danish name for the shelf is Amager Hylde (Ama'r beeing a contraction of Amager) Amager is an little island on which a part of Copenhagen spreads to.
The shelfs are still in use to this day, but tends to be in the homes of little old ladys or hipsters!
Danish Souvenir Viking
Wallpaper falling of
Swedish Wooden Horse & woodcarvings on the shelf
Stormtrooper & baseball (Elvis candy dispenser in background)