The Eiffel Tower is a wrought iron lattice tower on the Champ de Mars in Paris, France. It is named after the engineer Gustave Eiffel, whose company designed and built the tower.

Stonehenge is a prehistoric stone circle located in Wiltshire, England. It is composed of a ring of standing stones, each around 13 feet (4 meters) high, 7 feet (2 meters) wide, and 30 tons in weight.

The Colosseum, also known as the Flavian Amphitheatre, is an oval amphitheatre in the center of the city of Rome, Italy. Built of concrete and stone, it is the largest amphitheatre ever built, and is capable of holding between 50,000 and 80,000 spectators.

The Sydney Opera House is a multi-venue performing arts center in Sydney, Australia. It is one of the 20th century's most famous and distinctive buildings.

The Pyramids of Giza are a complex of ancient monuments located in Giza, Egypt. They include the Great Pyramid of Giza, also known as the Pyramid of Khufu or the Pyramid of Cheops, which is the oldest and largest of the three pyramids in the complex.

The Leaning Tower of Pisa is a freestanding bell tower located in the city of Pisa, Italy. It is known for its notable tilt, caused by an unstable foundation.

The Taj Mahal is an ivory-white marble mausoleum on the south bank of the Yamuna river in the Indian city of Agra. It was commissioned in 1632 by the Mughal emperor Shah Jahan in memory of his wife Mumtaz Mahal.

Big Ben is the nickname for the Great Bell of the clock at the north end of the Palace of Westminster in London, and is generally extended to refer to both the clock and the clock tower.

Machu Picchu is an ancient city located in the Cusco Region of Peru. It is situated on a mountain ridge 2,430 meters (7,970 feet) above sea level.

Petra is an ancient city in Jordan, famous for its intricate carvings and rock-cut architecture. It is believed to have been founded by the Nabataeans, an Arab people who inhabited the region from the 4th century BC to the 1st century AD.

Angkor Wat is a temple complex in Cambodia and is the largest religious monument in the world. It was built by the Khmer Empire, which ruled much of Southeast Asia from the 9th to the 15th centuries.

Chichen Itza is an ancient Mayan city located in Mexico's Yucatán Peninsula. It is famous for its large pyramid, known as El Castillo, or Kukulkan's Pyramid.

The Statue of Liberty is a copper statue, a gift from the people of France to the people of the United States, and is a symbol of freedom and democracy.

Christ the Redeemer is a statue of Jesus Christ in Rio de Janeiro, Brazil. It is one of the most iconic landmarks in the world and is a symbol of Christianity.

The Burj Khalifa is a skyscraper in Dubai, United Arab Emirates. It is the tallest building in the world, standing at a height of 828 meters (2,717 feet).