The world's longest pedestrian suspension bridge opened in Sochi National Park, Russia. It's not really meant to serve your daily commute, though - the bridge is part of the Sochi Skypark. The 439-meters-long bridge was built over a 218 meters chasm and it attracts bungee jumpers and sightseers alike. The Sochi Skypark Bridge was developed in collaboration with New Zealand, and it took 5 years, 740 tons of metal and 2,000 cubic meters of concrete to construct. The bridge and the bungee platform are suspended by 8 cables - each of which is rated to hold 300 tons. Those who have the opportunity to visit Sochi can take a stroll along the huge structure overlooking roads, rivers and mountains 218 meters below. Those that feel more adventurous can get in line for a bungee jumping experience - there are several different points on the bridge from which to jump.

At long last, the world's largest solar bridge at London's Blackfriars station is finally complete. Solarcentury and England's Network Rail partnered to cover the bridge with 4,400 photovoltaic panels. Formerly an energy hog, the bridge now provides Blackfriars station with half of the energy it requires to operate. Work on the world's largest solar bridge formally began on October 2011. The Blackfriars solar bridge stretches across the River Thames, transporting thousands of commuters every day from South London out of one of the busiest stations in the city. The station already accommodates electric trains, which make public transportation even greener, but with the new solar bridge is expected to make the station even more sustainable. First Capital Connect, which runs Blackfriars, estimates that the 4,400 photovoltaic panels will divert 511 tons of carbon emissions each year, drastically reducing the station's carbon footprint. Aside from providing renewable energy to the station, the Blackfriars Bridge will also serve as a symbol of London's quest to be a more sustainable city. The photovoltaic panels can be seen from both sides of the river, inviting tourists and locals to think about renewable energy. Solarcentury designed the bridge to incorporate the panels every step of the way, making a point that renewable energy is not an afterthought. Instead, it comprises a crucial element of the design.

Sochi will be the home for the world's longest pedestrian suspension bridge. 440 meters long bridge in the new constructed Extreme Park on the road to the mountain resort Krasnaya Polyana will span over the gorge of Mzima River. Besides the bridge the Extreme Park will include a giant swing, two attractions named "Flying fox", restaurant, bar and parking for 300 cars. The entertainment complex is planned to be commissioned at the end of this year. Attractions like this are already successfully operating in Germany, France, China, Australia and Singapore.

The government of Vietnam has constructed the world's largest dragon-shaped bridge over the Han River. Not only it is the steel bridge the largest of its type in the world, but it is covered in over 2,500 LED lights - and it breathes fire! Construction began on the bridge in 2009 and cost a reported US$ 85 million. Connecting the city's international airport and beaches, the structure simulates the shape of the dragon in the Ly Dynasty, a symbolic creature that is part of Vietnam folklore. The 166-meter-long steel arch is the longest such structure in Vietnam, with the dragon's body measuring a total of 568 meters and more than 9,000 tons in weight. The Dragon Bridge has a total length of 666 meters and 37.5 meters in width, with six lanes. The Louis Berger Group designed the six-lane bridge to emulate the shape of the dragon in the Ly Dynasty. It is also currently the only the bridge with a single steel arch in Southeast Asia.

London's Blackfriars Tube station is on its way to becoming the world's largest solar bridge. Stretching across South Bank a stone's throw from the Tate Modern, the busy station, built by Solarcentury, has already reached the halfway point to completion. Construction on the world's largest solar bridge began on October 2011. Blackfriars Tube station is still fully functioning, ferrying Londoners and tourists from the popular South Bank promenade to areas all over the city. Yet construction is still underway across the bridge's rooftop. Heavy scaffolding is slowly being removed to reveal the 4,400 solar panels that will serve the station, pumping 900 thousand kWh of solar energy back into the grid each year. The solar powerhouse will also reduce CO2 emissions by 511 tons per year, all while promptly serving commuters with uninterrupted service around the city. The gorgeous Victorian bridge is the only bearing solar panels along the River Thames. With stellar city views, boats pass under the bridge's arches throughout the day, while the station serves 24 trains per hour. Pedestrians strolling along the South Bank walk way pass under the historic bridge, check out the progress of its solar modernization. The idyllic scene could be just a glimpse of London's future. With over 100 bridges crossing the River Thames throughout the city, adding additional solar arrays on any of them could drastically reduce the city's consumption of fossil fuels, and ensure a source of clean energy for generations to come, reducing emissions and overall carbon footprint.