10 December 2013
Last updated at 13:14
Space imaging company DigitalGlobe has shortlisted its top 20 images taken by satellite as part of the Top Image of the Year contest 2013. This heart-shaped island in Croatia is called Galesnjak - also known as the island of love. The image was taken on February 16.
A satellite image of 'Quake Island', which erupted out of the sea off the Gwadar coast of Pakistan after an earthquake in September. It's about the size of a football field and rises about 20 metres above sea level.
The Citadel of Aleppo in Syria taken on May 29. This large medieval palace is considered to be one of the oldest and largest castles in the world.
Australia's Great Barrier Reef, taken on April 22. This is the largest collection of corals on Earth, with over 400 types making up thousands of individual reefs of all shapes and sizes, alongside hundreds of exotic islands.
A view from space on November 3 of 'Wish', the face of a six-year-old girl that has been created across 11 acres of land by the artist Jorge Rodriguez-Gerada. The amazing art work in Belfast, Northern Ireland used satellite technology and required 30,000 pegs, 2,000 tonnes of soil and 2,000 tonnes of sand to build.
The Cambambe Dam on the Cuanza River taken on April 28. This huge hydroelectric power station provides electricity to southwest Angola in west Africa.
Qatar's man-made island called the Pearl, which stretches nearly four million square metres. It's made from sand taken from the seabed, and rocks. This image was taken on March 4.
Hong Kong, China taken on May 9. Can you spot the giant rubber duck in the marina?
A satellite picture of Manam in the South Pacific, taken on March 22. This volcano is 10 kilometres wide and is one of Papua New Guinea's most active.
The Namib Desert in Namibia taken on May 13. This is the oldest desert in the world. The skeleton coast sees freezing waters meet the sea of spectacular dunes seen here. Its temperatures regularly reach 60C.
Mount Vesuvius in Italy taken on February 19. This volcano famously erupted in AD79 and killed thousands of people in the Roman cities of Pompeii and Herculaneum.
A massive algal bloom, or green tide, off the coast of Oman in the Middle East, caused by seaweed and algae growing in the water, taken on February 13.
The Arlit Uranium Mine in western Africa, taken on February 13. This is one of Niger's biggest uranium mines.
An image of Schooner Cays taken by satellite on May 26. This low-lying sandbank in the Bahamas is one of 700 islands, cays and islets.
The site of the 2014 Winter Olympics in Sochi, Russia, taken on March 17. 98 events in 15 different winter sports are planned to be held here.
The Colorado River in Utah, USA, taken on April 22. Dramatic canyons and white-water rapids make up 2,330 kilometres of river.
The Palau de les Arts Reina Sofia opera house and Gulliver Park in Valencia, Spain. Gulliver Park houses an enormous fiberglass model of a trapped Lemuel Gulliver. Taken on July 19.
The Palace of Versailles in France taken on August 20. This magnificent building was once the centre of French politics and home to Queen Marie-Antoinette before the French Revolution.
This image was taken on January 6 and shows the fires which ravaged parts of Dunalley in Australia. The red land shows healthy vegetation. Smoke caused by the fire can be seen in the bottom right-hand corner.
And finally a satellite image of Shiyuan Park in Xian, China, taken on September 24. The five finalists of the competition will be announced by DigitalGlobe later this month. People can vote for the pics they like on social networking sites.