SKYDB Building database

Tall buildings worldwide, with heights, construction status and the companies involved.

Rankings of tall buildings

Tall Building Markets

Tall buildings, tracked.

SKYDB is collecting verifiable information about buildings.

definition strict definition

gravel storage

Space for bulk storage of loose rock particles between 2-64 millimeters in diameter.

Gravel storage facilities are places for bulk storage of loose rock particles larger than sand, generally between 2 and 64 millimeters in diameter.

The material is held as loose rock particles in bulk. The usual size range is 2 to 64 millimeters in diameter.

Sand storage concerns the finer particulate rock. Larger stone awaiting carving or shaping has a separate rock storage meaning.