Machu Picchu is a 15th-century Inca site located in the Eastern Cordillera of southern Peru, on a 2,430-meter (7,970 ft) mountain ridge.

Jerusalem stands at the crossroads of Judaism, Christianity, and Islam.

Istanbul spans two continents, Europe and Asia, separated by the Bosphorus Strait.

Petra is a historical and archaeological city famous for its rock-cut architecture and water conduit system.

Sparta was a prominent city-state in ancient Greece, situated on the banks of the Eurotas River in Laconia.

Troy was a legendary city, once thought to be purely mythological until its discovery in the 19th century.

Athens, a sprawling city established among seven historic hills and surrounded by remarkable mountains.

Chichen Itza is a large pre-Columbian city built by the Maya civilization.

Cologne is a vibrant metropolis on the Rhine River, known for its rich history and diverse architectural styles.

Alexandria is a Mediterranean port city in Egypt, known for its rich historical and archaeological sites.