A mysterious, ancient collection of pre-Hispanic petroglyphs hidden deep in the Mexican desert.

In 1787, a group of delegates met at this very spot to drink, be merry, and ratify the Constitution of the United States.

Museum houses an impressive display of the origin and artistry from the now-quaint invention's history.

This local gem houses the largest collection of pre-Raphaelite paintings outside of the U.K.

A desiccated merman and a walrus penis bone are among the oddities in this eclectic collection of shipwreck treasures.

A blend of art, antiquities, and Americana fill this museum, surrounded by whimsical, enchanting gardens.

This splendid Versailles-inspired mansion has the largest French-style formal gardens in North America.

This collection of odd proofs of concept is like taking a walk through the imagination of a Victorian engineer.

It was an experiment to prove that glacial boulders and rocks can be used in constructions and dwelling.

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

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

For over 80 years, Mayan ruins stood proudly in a most unlikely location.

This surprising gem is a world-class archeological museum hidden at the University of Chicago.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

Years of archaeology, just chillin' by the water cooler.

Internationally known record store and purveyor of "dusties."

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

All of Chicago's wood-paved streets are long gone but two alleys remain.

The subtle science of a master molecular gastronomist.

This unauthorized stone mermaid was secretly carved out of public stone before being permanently preserved.

A speakeasy takes on Chicago's drinking culture.

A natural gas leak provides a flickering flame beneath a waterfall.

Collapsing castle on the Hudson river was once the storage site of military surplus business.

The stone marker that Mason and Dixon placed at the eastern end of the famous north-south border they surveyed.