World's second largest particle accelerator, where nature reveals its secrets.

A tribute to one granddaughter's old apartment which now represents the whims of each visitor.

The center of the only hemisphere that awards visitors with a commemorative coin.

A theme park attraction designed to turn your children into LARPers.

Spanning the El Chorro gorge, this pathway used to be one of the most dangerous crossings in the world.

Where hills of dirt conceal the burial ground of one of the most powerful ancient Native American societies.

Idol made by King Jeroboam for the Israelites.

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

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

The kind of mixed-up place that drives archaeologists crazy.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

Island ghost town detailing Flagler's folly in building the Overseas Railroad.

A perfect circle of twenty-four mysterious holes dates back to prehistoric time.

The haunting ruins of Jack London's dream house.

An ancient Viking village in North America that predates Columbus by 500 years.

America's oldest archaeological site or a muddled case of wishful thinking.

Ancient mysterious ruts carved in the bedrock.

Giant money stones of Yap.

The ruins of an ancient island city built atop a coral reef in the South Pacific are spectacular and strange enough to have inspired H.P. Lovecraft.

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

Super-heavy Nazi architectural experiment.

Steam engines and conveyor belts are remnants of a genius system left in the middle of the Maine woods.

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

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.