Burj Khalifa is a skyscraper located in Dubai, United Arab Emirates. Standing at a staggering 828 meters (2,722 feet) tall, it is currently the tallest man-made structure in the world. The building was designed by the American architectural firm Skidmore, Owings & Merrill and was constructed by Samsung C&T, with Turner Construction serving as the construction manager.

Construction of the Burj Khalifa began in 2004 and was completed in 2010. The building's design is inspired by the Hymenocallis flower, which is native to the region and is known for its delicate, symmetrical petals. The building's exterior is clad in glass and stainless steel, which gives it a sleek and modern appearance.

The Burj Khalifa is home to luxury apartments, offices, and a hotel. The hotel, which is located on the lower levels of the building, features 160 guest rooms and suites, as well as nine restaurants and lounges. The building also includes a number of amenities for residents and visitors, including a gym, swimming pools, and a spa.

In addition to its impressive height, the Burj Khalifa is also known for its energy-efficient design. The building uses a number of sustainable technologies, including a district cooling system that uses recycled water to cool the building, and a rainwater harvesting system that captures and stores rainwater for use in the building's landscaping and irrigation.

The Burj Khalifa has become an iconic symbol of Dubai and a popular tourist attraction. Visitors can take a tour of the building or visit the observation deck on the 124th floor, which offers breathtaking views of the city. The building also serves as a backdrop for a number of events and celebrations, including New Year's Eve fireworks and the Dubai World Cup, an annual horse racing event.

Overall, the Burj Khalifa is a marvel of modern engineering and design, and it continues to draw visitors from around the world with its impressive height and sustainable design.