The colossal ice mass known as the Perito Moreno Glacier is located in Argentina’s Los Glaciares National Park. Currently stretching almost 19 miles long and standing about 240 feet above water, it remains one of the few glaciers in the world that is still growing. Viewing platforms can get you close enough to feel its icy air and hear thunderous cracks as ice chunks plunge into the water.

Verdon Gorge, located in the Provence region of southeastern France, is often called the "Grand Canyon of Europe.” Carved by the Verdon River, the canyon stretches for about 15 miles, with the river's vivid green hues contrasting against the jagged limestone cliffs. One of the most popular ways to see the gorge is to paddle its waters, but one of the most visually rewarding is to complete the road trip along the gorge’s upper rim.

Hidden within Chile’s rugged Patagonia region are the Cuevas de Mármol, also known as the Marble Caves. The walls of these caves were formed over 6,000 years, as waves have washed against the marble and created a smooth canvas. The cave walls change into swirling smears of soft pinks, blues, and greens throughout the year, depending on water levels and the season.

Located in northeastern Vietnam’s Gulf of Tonkin is Ha Long Bay and its sparkling turquoise waters surrounded by over 1,600 islands and islets. The towering limestone karsts at this UNESCO World Heritage Site are covered in lush greenery, creating a tranquil seascape. The islands are largely uninhabited and are home to several types of ecosystems and endemic species.

Salar de Uyuni, located in Bolivia, is the world's largest salt flat. When the salt flat is dry, it forms a dazzling expanse of white salt tiles, but when nearby lakes flood the terrain, a thin layer of water creates a surreal mirror effect. Adventurous travelers will be rewarded with the once-in-a-lifetime vista — and can even sleep on beds made of salt blocks at nearby salt hotels.

Nestled at the base of Scotland's Black Cuillin Mountains on the Isle of Skye, the Fairy Pools are a mesmerizing natural wonder. These aquamarine-colored pools and waterfalls — the result of minerals in the mountain water — lend the site a serene and almost otherworldly setting amidst the rugged Scottish Highlands.

The Jurassic Coast, stretching along southern England, is known not only for its striking beauty but also for its geological history. The 96-mile coastline stretching from Dorset to Exmouth features rock formations from the Triassic, Jurassic, and Cretaceous periods — covering 250 millions years of geologic history. One of the most striking formations is Durdle Door, formed over 140 million years ago.

Straddling the border between Switzerland and Italy is one of the most recognizable mountain peaks in the Alps — the mighty Matterhorn. Its pyramid-like shape soars to almost 15,000 feet above sea level, and its embodiment of natural Alpine beauty has drawn mountaineers and nature enthusiasts for centuries. Matterhorn’s iconic shape is also renowned for another reason — it’s said to have inspired the Toberlone chocolate bar’s logo.

Preikestolen, often referred to as "Pulpit Rock," is one of the most popular hiking areas in Norway. The massive rock formation rises nearly 2,000 feet above the Lysefjord fjord. From its flat plateau, it offers surreal and breathtaking views of the surrounding cliffs. Preikestolen's beauty, shaped by glacial activity, has made it one of Norway's most photographed natural attractions.

The Galápagos Islands, a remote archipelago in the Pacific Ocean, are a province of Ecuador, about 600 miles to the east. For most of their history, the islands have been very isolated, and currently, only four of the 13 islands are inhabited by people. However, the islands are home to many unique species — which helped Charles Darwin develop his theory of evolution after visiting in the 1830s.

New Zealand’s Waitomo Caves, located about 125 miles from Auckland, are famous for their bioluminescent displays. Thousands of arachnocampa luminosa — more commonly known as glowworms — hang illuminated from the dark cave ceilings, creating the look of a starry night sky. Visitors to Waitomo can witness the magical site on boat tours through the limestone caves.

The otherworldly "fairy chimneys'' of Cappadocia, Turkey, were formed by millions of years of volcanic activity and erosion. Over time, a system of caves were carved into the spires and used as shelter by ancient civilizations. The region draws spectators not only for the unique views, but also for hot air balloon festivals and overnight stays in caves that have been converted into hotels.

Tanzania is home to Africa's largest free-standing mountain and highest volcano, Mount Kilimanjaro. Its peak soars to over 19,000 feet above sea level, attracting plenty of climbers with its breathtaking views. The mountain is so large that it also cultivates several different climate zones, from lush rainforests at its base to alpine deserts higher up.

Located in New Brunswick, Canada, the Hopewell Rocks are towering sea stacks along the Bay of Fundy shoreline that were formed by tidal erosion. These formations reveal their full glory during low tide, when visitors can explore sea caves and walk on the ocean floor. At high tide, visitors can explore the remarkable site from a new perspective while paddling the highest tides in the world.

Cenotes are deep, natural sinkholes that form through centuries of erosion, as the limestone bedrock above collapses and reveals a cave of groundwater below. Mexico's Yucatan Peninsula is known for its many cenotes. The name of this popular one — Dos Ojos, which means "Two Eyes" in Spanish — is derived from the interconnected swimming holes’ two large openings.

Located in Canaima National Park in Venezuela, Angel Falls is the highest uninterrupted waterfall in the world. The stunning falls cascade 3,200 feet from top to bottom, flowing from the Auyán-Tepui (“Devil’s Mountain”), a flat formation known as a table mountain. The falls plunge into a dense jungle area of lush forests, and are best seen from the sky.

The Great Barrier Reef, located off Australia's northeastern coast, is the world's largest living structure, stretching over 1,400 miles long and covering an area of approximately 133,000 square miles. The reef boasts incredible biodiversity, hosting a wide range of marine species, as well as beautiful colorful coral formations.

Carved by the Colorado River, the Grand Canyon, located in northern Arizona, is one of the United States’ most famous natural landmarks. Known for its immensity and stunning rock formations, this UNESCO World Heritage Site averages around 5 million visitors a year — particularly to the park’s south rim, where views of the geological wonder are unparalleled.

Mount Fuji is the highest mountain peak in Japan, standing over 12,300 feet tall. The dormant volcano is renowned for its snow-covered symmetrical cone, which, on a clear day, can be seen from Tokyo, just over 60 miles northeast. Hikers flock to its trails during the official July and August climbing season, and on New Year’s Day, revelers gather to watch the sunrise over its powerful peak.

The famous Cliffs of Moher, situated on Ireland's western coast, are a magnificent natural landmark carved by thousands of years of relentless waves and coastal winds. The rugged cliffs tower 700 feet above the Atlantic Ocean, offering not only breathtaking panoramic views, but also ample birdwatching opportunities thanks to the several seabird colonies that call the cliffs home.