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

special administrative zone

A Vietnamese commune-level unit established for an important island area with special conditions.

A special administrative zone is a Vietnamese commune-level unit established for an important island area with distinct geographic and administrative conditions.

It is one of the local unit forms directly below a province or centrally governed city, alongside communes and wards. It has local-government institutions for its defined territory.

The term is different from a special administrative region, which is a higher constitutional arrangement in another national system. Economic designation alone does not make an area this type of local unit.