Penguin food, Boston Aquarium

These trays, like buoyant plastic boats, are laid out full of fish to be fed to the penguins by the aquarium staff.

Messy penguin, Boston Aquarium

The largest penguin enclosure in the Boston Aquarium, holding most of the penguins and dominating the whole bottom floor as you enter the building, is filled with African penguins. Most are rather sleeker than this one, though, which looks quite a mess as it appears to be in the middle of a molt.

Little blue penguins, Boston Aquarium

Little blue penguins, the smallest species of penguin, splashing and playing as they swim around their open tank inside the lower floor of the Boston Aquarium.

Goverment Center station, Boston, MA

The new and improved Government Center T Station has expanded from a modest hole in the concrete to a castle of glass and steel, lit with shifting rainbow colors like some sort of nightclub.

Hallway light, Boston, MA

Delightfully asymmetric pattern of caging around a light in a hotel hallway.

Twirling interchange, Charlotte, NC

An unusual swirling pattern of a highway interchange, allowing all car to maintain a higher speed than the typical tighter cloverleaf.

Contrail shadow

Unusually clear, dark shadow of a contrail cast on the layer of clouds below its line.