She asked for a potato cellar and over the next 23 years he gave her a network of holy caves.

One man’s collection of photography books has transformed into a charming exhibition space.

A whimsical tower with a spiral staircase, inspired by the Space Age and the Möbius strip.

This former POW camp was transformed into a Cold War missile installation.

Remnants of a wall built to separate Black residents of Hall's Hill from a newly built subdivision are a grim reminder of segregation in 20th-century Virginia.

This environmental engineering marvel keeps salt water from the Elizabeth River.

This brick-lined pedestrian walkway was once a railway tunnel used during the Civil War.

This sprawling farm was once a Cold War-era hideaway for the nation's top diplomats.

The world's first cageless zoo is working to save endangered Tasmanian devils.

A museum that houses the world's largest collection of ventriloquism dummies.

Hidden on two floors of downtown building, the library has an incredible deal on rent.

An obsolete, vanishing traffic device warns Cincinnati drivers away from middle-of-the-road obstructions.

The inventor of the iconic Pringles can was so proud of his invention he was buried in one.

This humble star-gazing center touts itself as the "Birthplace of American Astronomy."

What is it about mushrooms that makes people wish they lived inside of them?

This magnificent Cincinnati graveyard is also a popular public park.

An art deco ice cream shop covered in vintage train station tiles.

This collection of Japanese luck idols beckons visitors with over 2,000 waving paws.

An abandoned relic of the city's failed experiment with below ground transit.

Where beautiful signs live on forever.

A bronze of the man in all his sinewy glory celebrates his longtime connection to the Ohio city.

This whimsical campus lawn is dotted with large sculpted numbers and hidden mathematical formulas.

The inventor of a number of hybrid corn species is immortalized with a field of giant corn.

Artifacts fill the old headquarters of the hugely influential political movement to ban alcohol in the United States.