I mean geology that makes your heart race, your pupils dilate. Rocks and exposures that make you feel woozy and warm. Structures and concepts that make your skin alternately sweaty and covered with goosebumps. Places you've visited, read about, or seen photos of that make you feel weak-kneed, and induce a pit in your stomach.I'm in a bit of a rush these days it seems, and so I'm just going to post a couple photos of some geology that always turns me on, and two links to related posts from earlier this year.
Beds and bedding are always of interest to geologists; cross-bedding is best.
More Cross Bedding
Also see Callan's recent post.
Photos are of the Jurassic Navajo Sandstone in Zion National Park, on Utah route 9, the Zion–Mount Carmel Highway, a few miles east of the Canyon Overlook Trailhead.
UPDATE: Accretionary Wedge #37, Sexy Geology, is now up at Outside the Interzone!