SKYDB

SKYDB Building database

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

Rankings of tall buildings

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Rankings of tall buildings

World’s tallest skyscrapersTallest under constructionTallest planned buildingsBiggest citiesBiggest countries

Tall Building Markets

Global building statisticsBiggest cities worldwideCountry market overviewsConstruction activityAnnual completions

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

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

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

About SKYDB

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Using SKYDB

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Chongqing skyline beside the riverAbout SKYDB

Panorama of Washington File 765-378-349

Washington, DC city

structure #374979885building

National Union Building

existing 6 floors 1890

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Location of National Union Building

Object dataJoin to edit

Floors6
Completion1890
Structural Formlow-rise building
Main Usagecommercial office
Status existing
Architectural Styleromanesque
Address918 F Street NW
Smart Address918 F Street NW
CityWashington
CountryUnited States
Source: SKYDB | As of: 2026-09-20

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Rating

The rating reflects architectural quality and visual impact as judged by SKYDB users, and feeds into how this building is ranked across the site.

Files Join to upload

  1. Photo 090-254-353
    Photo 090-254-353
    Library of Congress, Historic American Buildings Survey
  2. Photo 848-623-431
    Photo 848-623-431
    Library of Congress, Prints and Photographs Division, Detroit Publishing Company
  3. Photo 277-408-654
    Photo 277-408-654
    Library of Congress, Prints and Photographs Division, Detroit Publishing Company