Sky-high experiences like TILT in the John Hancock building and the glass Ledge balconies at Willis Tower offer more than ...

360 Chicago announced that it will close at 4 p.m. Sunday. The observatory at the skyscraper, now known by its address of 875 N. Michigan Ave., said all special events and classes have been canceled.

Developers pitch Aon Center observatory, glass elevator, and rooftop thrill ride Here’s the plan to convert Chicago’s third tallest building into a must-see tourist destination By Jay Koziarz ...

The owners of the Aon Center, Chicago’s third-tallest skyscraper, on Monday unveiled plans for an observatory atop the building, potentially setting up a heated competition for tourist dollars ...

The Adler Planetarium — America's first — was founded in 1930 by Chicago business leader Max Adler. Three theaters and numerous astronomical artifacts provide plenty of interest for guests ...

Experts say on April 8 in Chicago, the sun will be covered at 94%. A team from the Adler Planetarium is preparing for the big event in Chicago and Carbondale in southern Illinois.

Yerkes Observatory, the birthplace of modern astrophysics where Carl Sagan, Edwin Hubble and a pair of Nobel laureates studied galaxies, stars and black holes, is one step closer to a new life.

Workers use a crane to install a new, more powerful telescope, at The Adler Planetarium’s Doane Observatory. Brian Rich/Sun-Times The $100,000 telescope is the Doane Observatory’s first ...

Chicago, Clarke Telescope. Skip to content Skip to site index ... The New Telescope for the Chicago Observatory, Share full article. Feb. 26, 1865.

In an attempt to raise his standing within the city’s high society, he donated the funds to build the observatory, as long as it was constructed within 100 miles of Chicago.