Oleta River State Park

This guide to Oleta River State Park in Miami starts in 1951 with Interama, a planned permanent world's fair meant to unite every country in the Americas on land dredged from the bay bottom right where you stand. It follows decades of pavilions drawn, diplomats signing on, and funding repeatedly falling through, until only one building of the whole vision was ever finished and the site drifted into use as a dumping ground into the early 1980s. Look at the channels branching off the river, where some mangroves are noticeably younger, still filling in old dredge scars.