Ancient structures discovered along with canals and roads and strange Nazca like line.
NASA has released a huge number of high-resolution photos of Mars captured from the Mars Reconnaissance Orbiter's HiRise camera, which has been capturing images of the planet since 2005.
The latest dump consists of over a thousand images that can familiarize you with the red planet's many craters, impact sites, dunes, mountains, ice caps and other features.
You can view every single photo captured on HiRise's official website. Popular Science mentions that every 26 months or so, Mars and the sun are on the opposite sides of the Earth, allowing MRO to transmit a massive amount of photos from the planet's surface.