This massive sinkhole measures almost 1000 ft in diameter and is over 400 ft deep.
This massive sinkhole measures almost 1000 ft in diameter and is over 400 ft deep.
Jeb Corliss flies towards the tallest volcanic stack in the world at 1,844 ft.
It began as a wooden ladder built by the U.S. Military to gain access to a radio antenna. Now the Haiku Stairs are 4,000 steps leading to the Puu Keahiakahoe summit.
The Waitomo cave walls are covered in the glowworm Arachnocampa luminosa, which produce incredible blue, star-like formations.
Visitors must wear cooling suits to survive the extremely high temperature of 140 °F.
Known as "the road to paradise" this hiking trail in São Miguel Island runs through several volcanic crater-lakes.
The Tu Sua trench may be the most beautiful swimming hole in the world. A ladder allows visitors to reach the 100 feet of clear seawater at the bottom.
Seventy feet tall hexagonal columns of basalt pillars make up Fingal's cave interior and exterior walls.
You can reach the cave either by boat or you can travel to the small island of Staffa and hike into the cave by stepping from column to column.
When this canyon was first discovered, herds of prong-horned antelope roamed the area.
Can't forget about Lake Powell down the street!
Glacier movements 6,200 years ago caused the water level of the Lake to drop, allowing waves to shape these caves into the site we see today.
This treehouse swing in Ecuador allows visitors to thrust themselves over the deep valley below (no seat belts or harnesses available).
Photo by Sean Hacker Teper
It turns out that putting a certain type of plankton under stress results in one of the most stress-relieving sights on the planet, their resultant blue glow creating astral patterns on sea shores.
We're starting a list of the most surreal places on earth!
#1 is Salar De Uyuni, the world’s largest natural mirror. It's estimated to contain around 10 billion tons of salt.