Largest Egyptian pyramid and the tomb of Fourth Dynasty pharaoh Khufu
Wrought-iron lattice tower on the Champ de Mars in Paris, France
Historic and archaeological city in southern Jordan
Islamic ivory-white marble mausoleum on the right bank of the river Yamuna in Agra, Uttar Pradesh, India
Group of three waterfalls at the southern end of Niagara Gorge
Steep-sided canyon carved by the Colorado River in Arizona, United States
Ancient citadel located on a rocky outcrop above the city of Athens
Series of fortifications that were built across the historical northern borders of ancient Chinese states and Imperial China
Elliptical amphitheatre in the centre of the city of Rome, Italy, just east of the Roman Forum
Large pre-Columbian city built by the Maya people of the Terminal Classic period
Prehistoric monument on Salisbury Plain in Wiltshire, England, two miles (3 km) west of Amesbury
World's most-visited museum, and a historic landmark in Paris, France
Palace complex in Dongcheng District, Beijing, China, at the center of the Imperial City of Beijing
Castle complex in Prague 1 within Prague, Czech Republic, built in the 9th century
15th-century Inca citadel located in the Eastern Cordillera of southern Peru on a 2,430-meter (7,970 ft) mountain ridge
