Top 10 Most Unique Architectural Wonders in the World

The One World Trade Center, also known as Freedom Tower, is the main building of the 7 newly built World Trade Centers, located on the site of the old World Trade Center. Construction began on April 27, 2006. On March 30, 2009, the city authorities announced that the building would be known as 'One World Trade Center,' replacing its old name 'Freedom Tower.'

Upon completion, One World Trade Center became the tallest building in the United States, standing at 1,776 feet (541.32 m), and is one of the tallest buildings in the world. It was announced after a debate between architect Daniel Libeskind winning first prize in the competition to design the new WTC and Larry Silverstein - the lessee of this site.

The project is expected to have many safety improvements such as:

• An emergency core running through the building vertically with a system of information cables, ventilation pipes, water pipes, specialized pressure-regulating staircases, and waterproof elevators for accessing the building.
  
• High-adhesive fire-resistant concrete, capable of withstanding very large impacts
  Steel core structure, beams, load-bearing columns, will be interconnected so that if a main column is lost, the gravity of the building will be evenly distributed throughout the structure.
  
• Air for the offices from inside the building will be arranged from the top. Additionally, natural air before being introduced into the tower will undergo two different filtering stages to ensure the building will have clean air, even in the event of biological or chemical weapon attacks.
  
• At the base of the tower, there is a special security wall with three layers of load-bearing glass, each layer separated by a vacuum, reinforced by a solid steel structure, helping the building withstand large explosions.

The Petronas Twin Towers, also known as Petronas Twin Towers, is a skyscraper in Kuala Lumpur, Malaysia. The twin towers were once the tallest buildings in the world when measured from the ground floor to the highest point of the tower before being surpassed by Taipei 101 in height on October 17, 2003. These twin towers are currently the tallest twin towers in the world. Building 1 of this tower is used by the oil company Petronas as an office. Other companies using Tower 2 include Accenture, Al Jazeera International, Bloomberg, Boeing, Exact Software, IBM... The height to the top of the building is 403 m, with 88 floors.

Inspired by the architecture of mosques combined with modern elements, the architecture of Petronas has given this twin tower a unique style in the world. The tower was built by the most powerful oil conglomerate in Malaysia. It is considered an extremely ideal working space for companies, large offices as there are areas ranging from 1,300 - 2,000m2 without any columns in between. Currently, the first tower is used as the headquarters of Petronas - the investor of the tower, and its subsidiaries.

Experience the grandeur of the White House in Washington, D.C., the epitome of American political power.

Step into the heart of American governance at the White House in Washington, D.C., the official residence and workplace of the President of the United States.

The impressive design has earned The Shard skyscraper in London the title of the Most Beautiful Skyscraper in the World in 2014, as voted by the real estate data company Emporis. Standing over 300m tall, The Shard was designed by the renowned architect Renzo Piano. The entire tower is covered by 11,000 glass panels, maximizing natural light during the day. Additionally, numerous integrated ventilation gaps facilitate air circulation.

Up to 95% of the materials used to construct the building are recycled. The Shard boasts a total of 87 floors and is currently the tallest tower in Europe. Its construction cost amounted to $2.35 billion. Since its completion in 2012, alongside praises for its unique architecture, there have been some controversies regarding its overall compatibility with the surrounding area's urban planning.

Observation decks located from the 68th to the 72nd floor offer breathtaking panoramic views of London. However, to experience this service, visitors must pay a considerable fee, up to $40 per person. Apart from luxury apartments and office spaces for rent, the building also features a hotel and 3 upscale restaurants.

The Lloyd's Building, an epitome of futuristic architecture by Lloyd's of London (abbreviated as Lloyd's), has become one of the few modern architectural wonders listed in Grade I category, placing it in the top 2.5% of all listed buildings. Following the success of the magnificent Pompidou Center, designed by himself and Renzo Piano, Richard Rogers conceived the Lloyd's Building to replace the old headquarters of Lloyd's insurance company situated in the financial heart of London since medieval times. The building was completed in 1986, after an eight-year construction process, utilizing a total of 33,150 cubic meters of concrete, 30,000 square meters of stainless steel for cladding, and 12,000 square meters of glass.

The English Heritage nominated the building, and the Minister for Heritage, John Penrose, made the decision to list it. With Grade I status, the building will receive enhanced protection against disproportionate change or development; thus, it will have the same level of protection as St. Paul's Cathedral and Windsor Castle. The Lloyd's Building in London is one of the few post-World War II structures and constructions listed in Grade I category, alongside Basil Spence's Coventry Cathedral (listed in 1988), Norman Foster's Willis Corroon Building in Ipswich (listed in 1991), and the Severn Bridge (listed in 1998).

The Empire State Building is a 102-story skyscraper located at the intersection of Fifth Avenue and West 34th Street in New York City, United States. Its total height is 1,250 feet (380 m), and including the antenna, it stands at 1,454 feet (443 m) tall. The building's name is derived from the nickname of the state of New York. Designed by Shreve, Lamb and Harmon, construction of the Empire State began on January 22, 1930. It was completed on May 1, 1931, and was the world's tallest building until 1972 when the World Trade Center towers were finished. Following the events of September 11, when the World Trade Center was destroyed, the building once again became the tallest in New York until the completion of One World Trade Center with greater height on April 30, 2012.

The Empire State Building is regarded as a cultural icon of the United States. It is designed in the Art Deco style and is acclaimed as one of the Seven Wonders of the Modern World by the American Society of Civil Engineers. Its entire structure and upper floors' interior are designated as landmarks by the New York City Landmarks Preservation Commission, and confirmed by the New York City Board of Estimate. It was designated a National Historic Landmark in 1986. In 2007, the building was ranked first on the AIA's list of America's Favorite Architecture.

The building is owned by the Empire State Realty Trust, led by Anthony Malkin as managing director, chairman, and CEO. In 2010, the Empire State Building underwent a major renovation costing $550 million, with $120 million allocated for transforming the building into a more energy-efficient and environmentally friendly structure. Awarded the Gold LEED certification for environmental and energy design in September 2011, the Empire State Building is the tallest LEED-certified building in the United States.

The Roman Colosseum, initially known as Amphitheatrum Flavium in Latin or Anfiteatro Flavio in Italian, later referred to as the Colosseum or Colosseo, is a large amphitheater in the city of Rome. It had a seating capacity of 100,000 spectators when it was first built. The Colosseum was used for gladiatorial contests and public spectacles involving animals and prisoners of war. It was constructed around 70-80 AD under the emperor Vespasian. This was the largest amphitheater ever built in the Roman Empire, completed in AD 80 under Titus, with further modifications made under Emperor Domitian.

The Colosseum remained in use for nearly 500 years, with documented evidence of events until the 6th century, long after the fall of the Roman Empire in 476. Besides being a venue for gladiatorial combat, it was also used for public executions, mock sea battles, animal hunts, and classical dramas. Over time, it ceased to be used for entertainment purposes during the Middle Ages. Subsequently, the Colosseum was used as a residence, a workshop, a church, a fortress, and a quarry for building materials...

Despite being heavily damaged by earthquakes and stone-robbers, the Colosseum has long been regarded as a symbol of the Roman Empire and one of the most beautiful surviving examples of Roman architecture. It remains a major tourist attraction in Rome and maintains strong ties to the Catholic Church. Every year on Good Friday, the pope presides over the Stations of the Cross ceremony at the Colosseum.