Today is Manatee Appreciation Day! Go find a manatee to appreciate.

This fantastic map of American monsters includes my hometown creature, which I have never seen despite looking for it every time I drive along the river.

Speaking of rivers, here are some women who designed and built some of the world’s most famous bridges.

Moving away from the water, here’s a gallery of gorgeously spooky forests.

Thanks to HMTL5, you can create secret messages and images with “draggable” graphics!

And finally, here’s the full story of Joy Division’s “Unknown Pleasures” album cover, taken from a pulsar signal.