Don your Sharpie cat whiskers and galaxy leggings — we're going back in time (in the TARDIS) to a strange and unusual planet called Tumblr.

Tumblr is a social media site that was most popular around 2015. It is similar to Twitter and Reddit, and serves as a place for its users to design their own webpages while also serving as a forum for them to exchange ideas.

It is still around, and people commonly use it to discuss their fandoms or post photography. It was most popular among the nerdy and artsy communities on the web, and they wore it like a badge of honor. Tumblr stays super iconic and is hilarious now, even 10 years later.

Tumblr is also a strange place. Sometimes it's for comedy, sometimes it's for philosophy, or it's just totally random. But these things are what make it so unique and wonderful. Since Tumblr is so silly, strap in to have a case of the giggles.

Here are 25 Tumblr memes to peruse the glory days of the site.