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.

Machu Picchu is an ancient city in Peru that was built by the Inca Empire. It is located in the Andes Mountains and is one of the most popular tourist destinations in South America.

The Colosseum 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 centre in Sydney, Australia. It is one of the 20th century's most famous and distinctive buildings.

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 1631 by the Mughal emperor Shah Jahan in memory of his wife Mumtaz Mahal.

Petra is an ancient city in Jordan that is famous for its rock-cut architecture. It was the capital of the Nabataean Kingdom from the 1st century BC to the 1st century AD.

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.

Angkor Wat is a temple complex in Cambodia and is the largest religious monument in the world.

Chichen Itza is a pre-Columbian city built by the Maya people of the Terminal Classic period. The site exhibits a number of architectural styles, dominated by the Puuc style, but also including elements of the Chenes and Maya styles.

Athens is the capital and largest city of Greece. The city is famous for its ancient ruins, including the Parthenon, the Temple of Zeus, and the Acropolis.

Buckingham Palace is a London royal residence and the administrative headquarters of the monarch of the United Kingdom. Located in the City of Westminster, the palace is often at the centre of state occasions and royal hospitality.

Cairo is the capital of Egypt. The city is famous for its ancient ruins, including the pyramids of Giza, the Sphinx, and the Valley of the Kings.

Hagia Sophia is a former Greek Orthodox patriarchal basilica, later an Ottoman mosque, and now a museum in Istanbul, Turkey. From the date of its construction in 537 AD until 1453, it served as the cathedral of Constantinople, except between 1204 and 1261, when it was converted to a Roman Catholic cathedral under the Latin Empire.

Beijing is the capital of China. The city is famous for its ancient ruins, including the Great Wall of China, the Forbidden City, and the Temple of Heaven.

Saint Basil's Cathedral is a Russian Orthodox church in Moscow, Russia. It is famous for its colorful onion domes and is one of the most iconic buildings in the city.