One man's dream to build a 16th century castle came true—just outside of Cincinnati.

ARCHITECTURE
What would the world be without the Eiffel Tower or the Colosseum?
Vietnam’s FPT University is covered in trees. A lot of trees.
You know what Stonehenge looks like and have probably heard the speculation about its purpose, but how well do you know the UNESCO World Heritage Site?
The hulking Hoover Dam has been holding back the Colorado River and generating power for nearly 80 years, but you may be surprised to learn just how eventful its construction and naming were.
While we generally know a great deal about their most famous buildings, most people don’t know much about these 6 men behind the blueprints.
Jørn Utzon, the architect behind Sydney's famed Opera House, never got to see his greatest achievement completed.
What the World's Littlest Skyscraper lacks in size, it makes up for in story.
A few facts about the Gateway Arch’s bumpy road from conception to construction, and beyond.
Whether because of inaction, rejection, or pure skullduggery, these 15 of New York City landmarks have been lost forever.
Shortly after New York City's Penn Station was torn down in 1963, its east side counterpart—Grand Central Terminal—nearly suffered the safe fate. Fortunately, there was a former First Lady who understood the importance of preservation.