The world's brightest bioluminescent bay.

The Voodoo Superstore of the world.

The ancient latrines of the Greeks, in all their public glory.

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

Ruins of the Crusaders' headquarters.

The largest hewn stone in history.

An Ethiopian "Jerusalem" featuring a church hewn out of a single rock.

Every equinox this Maya pyramid puts on a spooky ancient light show.

The largest stone moai on Rapa Nui.

Stone Age solar temple is aligned with the sun on each equinox and solstice.

A beautiful bamboo trail tucked in this famous Japanese Shrine.

Hindu temple of the dead home to hundreds of long-tailed macaques.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

These ancient sacred grounds granted amnesty to those who managed to reach them.

An awe-inspiring mosque in Morocco with one of the tallest minarets in the world.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

A glittering South Asian anomaly in a wealthy Los Angeles suburb.

Holy Hindu shrine in an enormous, monkey-filled limestone cavern.

Real bones which are said to have belonged to a Polish dragon.

A walk through the historic city center, under the streets of Seattle.

An abandoned Jazz Age dream home and con man's hideout in Death Valley.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

An opal mining town in the middle of Australia where people live, worship, and shop underground.

Amazing and mysterious Neolithic settlement on Scotland's Orkney Islands.