The "mysteries" of this quintessential roadside oddity were almost destroyed by neglect but were saved by fans of kitschy wonder.

A memorial in coal country commemorates the victims of an all-too-preventable mining disaster.

The clothes-washing king doubles as a community center with some unusual features, including an aviary filled with finches.

The only building in Louisville (hopefully) that contains two ancient holy skeletons.

The massive, original Colgate Clock is mounted on a defunct factory building that was once a prison.

This 19th century mansion façade adorned with immigrant patriotism is a symbol of Louisville’s history.

Chicago's largest cemetery is full of beautiful Victorian monuments and more than a few ghost stories.

Chicago's museum dedicated to the history of bondage and fetishism is more textbook than titillation.

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

This shop for all your super spy needs hides an educational secret.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

Lions and tigers and leopards, servals, pumas, bobcats, lynxes, and ocelots... oh my!

G.V. Black, the Father of Modern Dentistry, keeps an eternal eye on Chicagoan’s teeth from his perch in Lincoln Park.

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

This memorial plaque remembers a strangely shallow maritime disaster known as "Chicago's Titanic."

This museum celebrating the almighty dollar lets visitors literally stand in the shadow of a million bucks.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

The iconic Chicago sculpture hides a beautiful and easily overlooked plaque on the backside.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

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

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

What's left of the ruins of the 1893 Columbian Exhibition, or World's Fair, also known as the White City.

A pharmacy built in the shape of a mortar and pestle, now resembles a fancy cocktail.

This urban drawbridge gained eternal pop culture fame when the Blues Brothers jumped it while it was raised.