From the Freedom Tower to the Sears Tower, here are the tallest buildings in all 50 states and DC, ranked by height.

The Portland Planning Board approved plans Tuesday to build a 30-story, mixed-use tower on Union Street in Old Port.

It will also feature the world's highest observation deck, offering panoramic views of the Red Sea and the city below, and ...

If work on a 33-story downtown apartment building starts, as planned, in January, Des Moines will join the ranks of cities with the 100 tallest buildings in the nation under construction or recently ...

Construction of Saudi Arabia’s kilometer-high Jeddah Tower, which will become the world’s tallest skyscraper upon completion, has resumed almost seven years after work ground to a halt amid a ...

The world’s tallest buildings represent humanity’s remarkable capacity to overcome architectural and engineering challenges, ...

Set on a site that is just over an acre, the team stacked a 40-level residential “pencil” tower on top of 10 levels of office on a base of 10 levels of parking with ground-floor retail.

The exhibit explores mass timber as a sustainable alternative through architectural models, material samples and artifacts ...

"Three, two, one!” The tallest steel-framed building ever tested on an earthquake simulator started moving slowly, swaying and twisting. The 10-story, 100-foot structure was experiencing simulations ...

Each year, high-rise building experts from the Council on Tall Buildings and Urban Habitat (CTBUH) release their predictions for the worldwide skyscraper industry. They also recap the top ...