This remarkable cave was discovered after a shepherd watched bees enter and exit through a small fissure.

The ruins of an ancient Roman tomb hidden in the basement of a trendy clothing store.

According to myth, Zeus himself was hidden in this cave to escape being eaten by his dad.

A Bronze age settlement on the Greek island of Santorini might have been the inspiration for Plato's Atlantis.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

This mystical orb covered in strange symbols is thought to have been used in ancient Greek magical rituals.

An ancient octagonal weather station named for the eight Greek gods of wind.

The oldest cemetery of modern-day Athens blends the modern and ancient worlds.

A minotaur, a labyrinth, and a dubious restoration pull in visitors from around the world.

This ancient hydrological marvel is now the base of a modern outdoor cinema.

This legendary city has been a tourist attraction for centuries.

The Cycladic architecture makes this Athens neighborhood feel like an island paradise hidden in the shadow of the Acropolis.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

The railway carts travelers to central Athens's highest peak, which offers stunning vistas of the city.

Submerged lava formations create incredible waterworks.

This legendary urban waterfall creates a dazzling display of rainbows.

A series of waterfalls and pools that flow through the 'Ohe'o Gulch and into the ocean.

Climbing this abandoned railway leads to breathtaking vistas of O‘ahu.

When struck, the strange stones in this park ring like bells.

This coastal cavern is associated with the Hawaiian god of creation.

More than 2,000 species of tropical plants call this nature preserve and sanctuary home.

This mom-and-pop Japanese sweets shop has been serving cloud-light mochi for almost a century.

A cooled lava flow from the Haleakalā volcano formed these surreal-looking columnar basalt structures.

A prehistoric landscape hidden in the cliffs of Maha'ulepu.