Biological wonders

Biological wonders of the world – unusual ecosystems, animal colonies, outstanding trees, and fossil finds.

Parks and gardens

Planned spaces with visually attractive displays of plants and architecture – fountains, sculptures, and other structures.

Palaces and country houses

The category of palaces and country houses includes large and showy residences that have served to express the power of their owners.

Castles

Wondermondo 🢖 Categories of wonders 🢖 Architectural wonders 🢖 Houses 🢖 Castles Category Castles Described castles What is included in this category? This category includes fortified buildings – houses of influential and rich people. This seemingly simple definition though does not set strict limits and in a lot of cases, it is not entirely clear whether a building is a castle or not. […]

Ol Doinyo Lengai

The only known carbonatite volcano in the world (except for the neighboring Kerimasi volcano). The volcano produces natrocarbonatite lava with nearly unique minerals – nyerereite and gregoryite. Lava flows at very low temperature at 500 – 600 ° C. Carbonates react with the moisture of the atmosphere and quickly turn white, creating a unique volcanic landscape. Here in a steep cone has been observed formation of a new, nearly unique lava cave with enormous stalactites made of fragile natrocarbonatite.

Early human finds

Wondermondo 🢖 Categories of wonders 🢖 Biological wonders 🢖 Fossil finds 🢖 Early human finds Category Early human finds Described early human finds What is included in this category? In this category Wondermondo has included most important and unusual places with remains and other traces of activities by early humans (including other species of humans) and other hominins. This is a subcategory to […]

Patomskiy Crater

Unusual crater – up to 40 m tall and 160 m wide mound/ring of limestone blocks with a smaller mound inside. Most likely it was created by a gaseous eruption some centuries ago.

Ikaite tufa columns in Ikka Fjord

Almost unique phenomenon – submarine tufa columns created by cold seeps from submarine springs. Columns are formed of ikaite – an unstable mineral that disintegrates in temperatures above 6 – 7 ° C. In total there are more than 600 such columns up to 18 m tall.

Oklo Mines – the only natural nuclear reactor

The only known site on Earth, where natural nuclear fission has taken place approximately 1.7 billion years ago in some 16 closely located sites. The evidence of this has been testified through an unusual composition of uranium, neodymium, ruthenium, and other materials.

Daikoku Sulfur Cauldron

A unique pool of liquid sulfur at the summit of a submarine volcano, one of the few in the world.