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SKYDB

SKYDB Building database

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

Rankings of tall buildings

Tall Building Markets

  • Global building statistics
  • Biggest cities worldwide
  • Country market overviews
  • Construction activity
  • Annual completions
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SKYDB Awards

The community is honoring the best new skyscrapers. A legacy since 1999.

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SKYDB Community

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SKYDB Products

Professional building research, data exports and API access, plus advertising offerings.

Research & data

Consulting & advertising

SKYDB Insights charts showing buildings by decade, status, use, floor count and height

SKYDB Insights

Professional research into buildings and participating companies.

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Tall buildings, tracked.

SKYDB is collecting verifiable information about buildings.

About SKYDB

Using SKYDB

Chongqing skyline beside the river

Who we are

SKYDB is the source for tall building information worldwide.

About SKYDB

Interactive building map

Explore all projects on an interactive map anywhere on earth.

Free map access

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SKYDB map with building pins and a building record in Lower Manhattan

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definition strict definition

prison

A site where people convicted of crimes are confined to serve their sentences, distinguished from detention before conviction.

A prison is a site where persons convicted of crimes carry out their sentences through incarceration. It is distinguished from a jail, which holds persons accused but not yet convicted of wrongdoing.

Incarceration is the means by which the sentence is served. A judicial sentence that does not involve confinement does not by itself make the place where it is carried out a prison.

A jail has the separate meaning of holding accused persons, commonly temporarily or before trial. The distinction here follows the stated confinement purpose, not the architectural form of the building.