The Yonaguni Monument, a natural formation or the Japanese Atlantis?

The sign that drew attention to a young boy's cucumber stand is now the name of his fruit superstore.

Found: Garden of Eden in Miami-Dade County, Florida.

A mysterious castle built as a monument to lost love.

The Andean town where every single building is decorated with a brightly colored frieze.

These Nubian pyramids are strange and unique, even by pyramid standards.

The sign at the garden gate reads: "These Plants Can Kill."

The largest greenhouse in the world is home to over one million types of plants.

At the point of oceanic inaccessibility, you can't get farther from dry land without leaving the planet.

Living fossils in this remote Australian bay provide a glimpse of what Earth may have looked like 3.5 billion years ago.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

A 19th-century subterranean reservoir repurposed as a contemporary art cave.

Sleep snuggled in a sphere suspended atop the forest canopy of Vancouver Island.

Green labyrinth formed by a karstic maze hidden in a preserved oak forest.

This ancient altar emerges from the thick forests to reveal the mysteries of Etruscan sacrificial rituals.

A 16th-century horror show built in a lovely Italian garden.

An explosion of natural color known as "the river that ran away from paradise."

At least seven hues of blue and turquoise make this freshwater lagoon unique.

These enigmatic ruins continue to vex archaeologists.

One of its engravings is believed to be among the first representations of medical and surgical instruments.

This unassuming tree stump reportedly traces its roots to the famous pharaoh queen's reign.

This ancient structure is widely thought to be the oldest intact pyramid in the world.

The once great capital of Egypt now crumbles forward as evocative ruins.

These Egyptian statues have survived for 3,400 years and were an acoustic wonder of the ancient world.