The Mike O'Callaghan–Pat Tillman Memorial Bridge is an arch bridge in the United States that spans the Colorado River between the states of Arizona and Nevada. The bridge is located within the Lake Mead National Recreation Area approximately 30 miles (48 km) southeast of Las Vegas, Nevada, and carries U.S. Route 93 over the Colorado River.

An airplane house is pictured in the village of Miziara, northern Lebanon May 12, 2015. Miziara prides itself on building residential homes that resemble ancient Greek temples and Egyptian ruins, one is even built in the shape of an Airbus A380. (Photo by Aziz Taher/Reuters)

Central Bangkok and the Chao Phraya River are seen from an abandoned skyscraper in Bangkok April 19, 2015. The abandoned building, known as Satorn Unique, dubbed the “ghost tower” was destined to become one of Bangkok's most luxurious residential addresses but construction was never completed as the Thai economy was hit during the 1997 Asian Financial Crisis. Now, many travellers visit and explore 49-storey skyscraper. (Photo by Athit Perawongmetha/Reuters)

Cooperation is key to success. This motto was used by the Government of Denmark when they decided to create a project that bore the name of UN City. This compound was designed to house all nine Copenhagen based UN agencies under a single roof. This embodies the core idea of the United Nations, since this project allows for better efficiency and practicality thanks to joint effort. The first plans for the UN City were hatched in 2002. After 11 years, in 2013 the first stage of the project was finally finished. Presently, Campus 1 of UN City accommodates 1,300 staff member, while Campus 2 is going to become the largest humanitarian warehouse in the whole world.

Modern architecture is nothing short of a miracle. For example, the mind-boggling skyscrapers of Dubai would dumbfound anyone who is lucky enough to witness them in real life. Nevertheless, there are some modern buildings that are not as grand as the Burj Khalifa or Princess Tower, but are still wondrous to look at. Emporia Shopping Centre, located in Malmo, Sweden, is one of those places. The architect who designed this building is named Gert Wingardh. Emporia Shopping Centre was built to look as if its center was melted through by an inferno, leaving behind a giant molten block of gold.

The essence of the “masterpieces” created by Giuseppe Lo Schiavo is in taking a famous architectural landmark placing it on a rock, and making it float over some body of water. Well… that’s pretty much it. Of course there will be some people who will look deep within these works of art, and catch the true meaning and intentions of the mastermind who created them, and maybe even purchase them for unreasonable amounts of money. But the rest of us, the common folk, will stare at it for a while, cringe, and move on without a second thought. (Photo by Giuseppe Lo Schiavo)

An alpaca is seen near the Inca citadel of Machu Picchu in Cusco December 2, 2014. Machu Picchu, a UNESCO World Heritage Site, is Peru's top tourist attraction, with the government limiting tourists to 2,500 per day due to safety reasons and concerns over the preservation of the ruins. (Photo by Enrique Castro-Mendivil/Reuters)