Hill of Seven Colors (Cerro de los Siete Colors) in Purmamarca, UNESCO World Heritage Quebrada de Humahuaca, Jujuy, Argentinagetty
6. Quebrada de Humahuaca, Argentina
The Quebrada de Humahuaca is a natural fresco of painted mountains in the less explored northwest of Argentina. This 155-kilometre valley in Jujuy province, recognized as a UNESCO World Heritage Site in 2003, has served as a trade and migration route for about 10,000 years, connecting the high Andean plateau with the plains below. Today, that history still comes alive in pre-Hispanic settlements, Inca streets, colonial churches, and adobe villages – but the region is also emerging as one of South America’s best wine destinations. Around Maimara, Huacalera and Uquia, a growing collection of boutique wineries are producing high-altitude wines shaped by the desert sun and dramatic temperature changes, with some vineyards located above 3,000 metres. Go for the landscapes, but stay for a long lunch amid the vines and late-night live folk music in a corner of Argentina that still feels decidedly local.
Kaieteur Falls is one of the most powerful single-drop waterfalls in the world. It is located on the Potaro River in Kaieteur National Park in the Central Essequibo Territory of Guyana. Its height is 226 meters (741 ft), measured from the fall to the first crack on the sandstone and conglomerate rock. It then flows over a series of steep waterfalls, which when included in the measurement give a total height of 251 meters (822 ft). While many waterfalls have height or greater flow, some have a combination of height and water volume, and Kaieteur is one of the most powerful waterfalls in the world with an average flow rate of 663 cubic meters per second (23,400 cubic feet per second).getty
7. Kaieteur Falls, Guyana
Guyana has long been South America’s best-kept secret, but that may be changing. The English-speaking country welcomed a record number of tourists in 2025 and will host the Caribbean Tourism Organization’s State Tourism Industry Conference for the first time in 2026 – two signs that its remote rainforests are moving into the spotlight. Yet Kaieteur Falls, a 741-foot single-drop waterfall located within Kaieteur National Park, is nothing new. Almost four times higher than Niagara Falls, these falls release unimaginable amounts of water per second, making them the most powerful on Earth. The best time to visit is during the rainy season, from May to August, when Kaieteur is at its most dramatic. Unlike Iguazu or Niagara, there are no crowds, boardwalks or hotels, just the roar of the Potaro River tumbling into the jungle below.
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