Loltun Cave

Engravings in Loltun Cave

Cave with some of the best Mayan cave paintings as well more ancient carvings and remnants of prehistoric animals hunted by Paleoindians.

Oxtotitlán

Copy of a painting in Oxtotitlán Cave, ruler on throne

Cave with unique ancient Olmec paintings made 900 – 500 BC.

Juxtlahuaca

Juxtlahuaca Cave, ancient painting of jaguar

Cave with unique ancient Olmec paintings made 900 – 500 BC.

Cuatrociénegas Valley (Cuatro Ciénegas Valley)

Cuatrociénegas, Poza Azul

Unusual part of Chihuahua desert with thousands of geothermal spring pools. Extremely high biodiversity including more than 70 endemic species not found outside this valley. Most unique are stromatolites in spring lakes, endemic plants in gypsum dunes, fishes in lakes.

Lake Alchichica

Alchichica Lake with stromatolites, Mexico

Unique maar lake with a high level of endemism, especially noted due to rare stromatolites met only in few locations around the world. Endemic salamander and fish. Renowned location of unusual experiences such as UFO sightings, lights in the lake.

Pù Mát Pride of Vietnam

The largest tree in Vietnam – more than 70 m high sa mu tree (Cunninghamia konishii). Its trunk has a circumference of 23.7 m, diameter of 5.5 m.

Hang Rục Caroòng (Ruc Caroong)

Large cave in spectacular karst region. This cave serves as a habitat to Arem people who live in the caves and are hunting and harvesting. Part of the giant, more than 35 km long Vom Cave System that might be the largest cave in the world by volume.

Con Moong Cave

Cave with two large entrances, site of prehistoric settlement of the late Paleolithic and Neolithic Sơn Vi and Hoa Binh cultures, more than 10 thousand years old.

Suoi Giang tea forest (Suối Giàng)

Old tea trees in Suối Giàng

Here grow possibly the world’s oldest tea trees that are up to 3,000 years old. In total in this forest grow more than 85,000 old tea trees. This could be one of the oldest tea plantations in the world.