The human towers (“castells” in Catalan) are built traditionally in festivities and competitions in Catalonia, Spain. At these events each team (“colla”) builds and dismantles several human towers. For their success, a crowded and stunning base of dozens of people needs to be previously perfectly set up. David Oliete

Retired Baseballs

Photographer Don Hamerman captures the unexpected beauty of baseballs that are well past their last innings. Hamerman picked up the vintage balls while walking his dog across an old diamond over the years (presumably a really old diamond). All of the balls have decayed differently, but we’re particularly fond of this one. You can check out the others over at NPR.

Earth, Comet, Sun

We’d probably settle for any one of these things, but within this photo are the following: a) the Sun, b) a comet, and c) the Earth. The comet, PanSTARRS, is shooting through the middle, with Earth labeled to the right and the Sun peeking through on the left. The STEREO-B spacecraft captured this image as it was cruising 100 million miles away from Earth. Quite the group photo.

A Bright Zebrafish’s Tail

The University of Wisconsin-Madison just released the winners for its Cool Science Image contest. They are, in fact, really cool, especially this one, which shows a zebrafish embryo’s fin at 40x magnification. A green molecule is lighting up its nerve network.

Sea Dreams

We don’t know too much about this photo, other than that it comes from the very cool, very surreal Flickr of photographer Simon McCheung. Wouldn’t usually pick a night’s sleep in a lake over a nap on a beach, but this makes it seem so relaxing.

Spot The Legos!

A couple things in this photo are made from Legos. Yeah. No kidding. Can you guess what they are? Guess! Okay, they are: the towel that’s hanging in the background and the shoes on the ground. sculptor Nathan Sawaya and photographer Dean West teamed up to create images like this for a series called “In Pieces.” Get it?

Tex Mex

American-born Jeanette Muranyi grew up in Juarez, Mexico, and has wanted to explore the city’s poorest areas for a while now. But the border town is on the front lines of Mexico’s drug war, and cartel violence made it too dangerous for her to visit. Instead, she shot the city from El Paso, Texas using a telescope attached to a DSLR. You can read more about her process here.

Star Warp

NASA’s Kepler space telescope observed Einstein’s theory of relativity in action recently as a white dwarf (a dense, burnt-out star) passed in front of a less massive (but larger) red dwarf star. As it did so, astronomers could see the “gravitational lensing” that bends the starlight. You can watch an animated version of this artist’s concept on NASA’s website.

Shape-Shifting Ballet

This concept by Parisian architecture grad student Alice Labourel envisions a ballet school perched above a river in Los Angeles, where it would be subject to flood and the passage of roaring trains. The building is designed to move in reaction to these factors, as well as in response to the motions of the students themselves. Because ballet on its own wasn’t hard enough–it needed to add a moving building.

Best Big Mac Ever

Proving that McDonald’s is infinitely better abroad, architect Giorgi Khamaladze has designed an indoor garden for this strangely elegant burger joint/gas station in a city near the Black Sea in Georgia. Could we Super Size that?