Though Walt Disney World covers 25,000 acres, only half of that has been used by the park—and then, of course, there are the areas that are abandoned, the most intriguing of which is Discovery Island.

There are many lists out there that itemize so-called “wonders of the world,” but the original list—the definitive one—has been around for nearly 2,000 years. Though most of the structures on it have been lost to time, one survives to this day—and many of history’s most compelling stories are interwoven with the lives of these wonders.