Nice question, we all know that earth is home to incredibly beautiful natural sites. But because of climate change and human carelessness, some of them are in danger of disappearing in the next 100 years — or even sooner.

From Patagonia's glaciers to Africa's Congo Basin, these threatened natural wonders span the globe.

Keep scrolling to see where you should visit sooner rather than later.

>The Seychelles

A popular destination for honeymooners or paradise-seekers, the islands of the Seychelles — located in the Indian Ocean off the coast of Madagascar — are vanishing because of beach erosion. They're in danger of completely disappearing in the next 50 to 100 years.

Mount Kilimanjaro, Tanzania

The picturesque snow that tops Mount Kilimanjaro in Tanzania may not be there much longer. Between the years of 1912 and 2007, Kilimanjaro's ice sheet shrank by a whopping 85%.

The Mirador Basin and Tikal National Park, Guatemala

The Mirador Basin and Tikal National Park in Guatemala are home to the mysterious ruins of the Mayan civilization. Illegal looting and forest burning, however, may destroy this piece of history.

The Sundarbans, India and Bangladesh

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The Sundarbans contain close to 4,000 miles of water and land in the Ganges Delta. They're home to the largest area of mangrove forests in the world. These forests provide a refuge for a number of endangered species, like tigers. Deforestation, pollution, and a strong dependence on fossil fuels are causing sea levels to rise rapidly in the area, which has led to the erosion of precious coastline.