Built to house a chapter of the Knights Templar, this grandiose building is a relic of Freemasonry in Chicago a century ago.

A little-known subterranean street runs under some of the best-known buildings in Chicago's River North.

A European-style bath house in Chicago.

At Chicago's revered Field Museum, visitors are invited to learn about and literally explore DNA.

Chicago's North Park Village was once the largest municipal sanatorium in the country.

Cemetery featuring rare glass-fronted columbarium.

Former meatpacking facility turned vertical farm and sustainable business complex.

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

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

The world's only known button museum.

A century-old hotspot for jazz, frequented by everyone from Charlie Chaplin to Al Capone.

A hollow cement depiction of time's inexorable effect on the human body.

Nonprofit art center that promotes outsider, intuitive, and self-taught art.

A giant bronze coil of feces is both a tribute to doggie defecation and a reminder to pick it up.

The tech giant built three enormous glass orbs in Seattle so employees could work inside a rainforest greenhouse.

Peruse rare tomes like poetry bound in pearls or books with branches and berries growing out of their spines.

Old submarine parts have been converted into faux whale fins.

This historic building provides a powerful glimpse into the lives of Japanese Americans forced to relocate during World War II.

A (slightly) grownup take on the classic retro arcade.

A rotting tree in the middle of Seattle doubles as an elaborately-controlled art piece.

The tale of a strong-willed woman who stood her ground when the commercial world came rumbling in.

This Seattle joint serves food inside an old train car once used by FDR.

The first park built over a freeway is a brutalist masterwork.

Essence of hound's tongue and tincture of bloodroot are just the tip of the herbalist iceberg at this beautiful, impressively-stocked apothecary.