A menu on the right side lets you browse posts by decade, and the earliest (like this one about flying machines as imagined in 1885) are often accompanied by fanciful illustrations from the Library of Congress.
Soon, the blog will highlight responses to its Paleo-Future Project, which aims to preserve the collective memory of the future. If you want to get involved, dig out the digital camera or recorder and start asking questions! Paleo-Future offers a few talking points to get you started, such as “Did you ever try building your own jetpack?”
Here are some more gems: