The lava lake of the continuously active volcano Erta Ale, Ethiopia.

Where the Great Wall of China ends.

A geyser right before eruption.

Bavarian town of Nordlingen built in a 14 million year old meteor impact crater.

A huge dust storm that hit Western Australia in early 2013.

A rare 360 degree rainbow captured from an airplane.

Climbers going up Mount Everest in May 2013.

An aerial view of a scrap tire dump.

Bagger 288, the largest land vehicle in the world.

A cross-section of an undersea cable.

Inside one of Google’s data centers.

Einstein’s desk hours after his death.

Michelangelo illustrated his grocery lists so that his illiterate servants would know what to buy him.

The inside of a FedEx Boeing 757 without any cargo.

Overcrowded prison in El Salvador.

Hitler’s office.

Enormous statue of Genghis Khan in Mongolia.

What pugs looked like before selective breeding.

Octopus eggs.

George Washington’s teeth.

A watch belonging to Akito Kawagoe which stopped at 8:15, the exact time of the Hiroshima bombing in 1945.

A microscopic image of a human tongue.

Five pounds of fat compared to five pounds of muscle.

Cancer cells under an electron microscope.

X-rays before and after treatment for scoliosis.

The clearest photo of Mercury ever taken.

Mars in true color from the Curiosity Rover.

The northern lights from space.