SKYDB
Data backbone

Other information
besides just buildings.

SKYDB is built from regions, companies, photos and the dictionary that ties them together. Pick a thread to pull.

Explore database →
RegionsBrowse every region on file→
CompaniesArchitects, developers, engineers→
DefinitionsTerms and concepts explained→
New toolHeatmap modeSee structure density visualised across cities - beta.
Try heatmap →
Buildings, everywhere.

Unlimited ways
to discover.

Browse the top 1000 tallest, search for any building by name or attribute, or explore city-by-city statistics.

Explore buildings →
Search formFind content with ease.→
Top 1000 SkyscrapersUpdated as new towers complete→
Biggest CitiesView city-related statistics→
Biggest CountriesNational rankings + records→
RegionsBrowse buildings by region→
CompaniesArchitects, developers, engineers→
For SKYDB Premium usersChannelsChannels organize buildings across cities and countries by height or theme. Their building lists are available with SKYDB Premium.
Browse channels →
SKYDB Community

Where accuracy
comes from.

We are what makes SKYDB stand apart. Editors who care about buildings and care more about getting them right. Same standards, same care.

Community →
EditorsA community which matters→
MembershipsElevate your possibilities→
How to submitWhat we need and how to send it→
Add buildingLaunch the object tool→
Upload photosSubmit missing images→
My contentEverything you added and edited→
SpotlightFeatured PersonalityMarshall Gerometta is "the brain" when it comes to heights. As a veteran in the field, he also maintains the world's official list of the tallest skyscrapers.
Explore his work →
Since 30 years

The source
for tall buildings

SKYDB is creating the world's most comprehensive and deepest database of tall buildings. Used by professionals, maintained by experts.

Who we are →
Who we areExperts in the field→
Pricing and ServicesGet access to paid options.→
DefinitionsHow we measure and verify→
Knowledge BaseArticles + tutorials→
Get the NewsLatest announcements→
ContactReach out to the team.→
Featured activitySKYDB AwardsThe best skyscrapers of the world. Selected every year by SKYDB and its community members.
Visit the page →
Panorama of Chicago File 310-956-285

Chicago, IL city

structure #307871081building

The Blackstone

existing 88.4 m 21 floors 1910

Full map Join SKYDB
Location of The Blackstone
Height Rankings

Object dataJoin to edit

Tip Height88.4 m
Architectural Height88.4 m
Roof Height88.4 m
Floors21
Completion1910
Structural Formhigh-rise building
Main Usagehotel
Status existing
Architectural Stylesecond empire
Address630 South Michigan Avenue
Smart Address630 South Michigan Avenue
Smart Address80 East Balbo Drive
CityChicago
CountryUnited States
Source: SKYDB | As of: 2026-09-17

Location

Full MapGoogle MapsBing Maps

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 679-613-635
    Photo 679-613-635
    Michiel van Dijk
  2. Photo 841-237-800
    Photo 841-237-800
    Daniel Kieckhefer
  3. Photo 605-603-859
    Photo 605-603-859
    Daniel Kieckhefer
  4. Photo 260-152-545
    Photo 260-152-545
    Daniel Kieckhefer
  5. Photo 844-582-484
    Photo 844-582-484
    Library of Congress, Prints and Photographs Division, Detroit Publishing Company
  6. Photo 940-926-612
    Photo 940-926-612
    Library of Congress, Prints and Photographs Division, Detroit Publishing Company
  7. Photo 858-648-753
    Photo 858-648-753
    Library of Congress, Prints and Photographs Division, Detroit Publishing Company
  8. Photo 260-824-537
    Photo 260-824-537
    Huopa
  9. Photo 840-316-336
    Photo 840-316-336
    Daniel Kieckhefer
  10. Photo 454-114-802
    Photo 454-114-802
    Daniel Kieckhefer
  11. Photo 851-338-447
    Photo 851-338-447
    Marshall Gerometta