
Grand Canyon
The Grand Canyon is a steep-sided canyon carved by the Colorado River in Arizona, USA. It is 446 km long, up to 29 km wide, and over 1.8 km deep, exposing nearly two billion years of geological history.

The Grand Canyon is a steep-sided canyon carved by the Colorado River in Arizona, USA. It is 446 km long, up to 29 km wide, and over 1.8 km deep, exposing nearly two billion years of geological history.

The Great Wall of China is a series of fortifications built across the historical northern borders of China, with the most famous Ming-dynasty sections totalling 8,850 km. Together all walls stretch over 21,000 km.

Hagia Sophia is a former Greek Orthodox cathedral, later an Ottoman imperial mosque, and now a mosque again, in Istanbul. Built in 537 CE, it was the world's largest building and an engineering marvel.

The State Hermitage Museum is a museum of art and culture in Saint Petersburg, founded in 1764 by Catherine the Great. It has been open to the public since 1852 and houses over 3 million items.

The Hollywood Sign is an American landmark on Mount Lee in Hollywood, Los Angeles. The 13.7-metre-tall white capital letters were originally erected in 1923 as an advertisement for a real estate development.

Iguazu Falls are waterfalls of the Iguazu River on the border of Argentina and Brazil, comprising 275 individual drops over a distance of 2.7 km. The Devil's Throat (Garganta del Diablo) is the most spectacular section.

The Moscow Kremlin is a fortified complex in central Moscow, overlooking the Moskva River. It includes four palaces and four cathedrals, and is the official residence of the President of the Russian Federation.

The Las Vegas Strip is a 6.8 km stretch of Las Vegas Boulevard in Clark County, Nevada, known for its concentration of resort hotels and casinos. The Strip itself is unincorporated and lies south of the Las Vegas city limits.

The Leaning Tower of Pisa is the bell tower of Pisa Cathedral, famous for its near-four-degree lean caused by an unstable foundation. It took 199 years to build because of multiple construction halts.