This former tuberculosis treatment facility now stands at the center of a public park.

Known as "The Dome" this is the world's largest open air geodesic dome.

This magnificent Cincinnati graveyard is also a popular public park.

An unusual, super-sized grocery adventure awaits in an Ohio suburb.

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

Enchanting gardens surround a derelict mansion, all hidden in plain sight behind a stone wall.

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

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

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

One man's ambition created this psychedelic log home.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A beautiful geyser under environmental threat.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

The first declared National Monument in the United States.

This former maximum-security prison is creepy, sobering, and supposedly haunted.

Carrying on the legacy of a short-lived experimental school tucked away in the mountains of North Carolina.

The residents of the Neighborhood of Make-Believe live without much fanfare within the Pittsburgh Children's Museum.

One of the few places where you can explore a 1918 paddlewheel steamboat from stem to stern.

A Milwaukee museum provides an unsparing and ultimately empowering look at the Black American experience.

Railroad officials in the early 1900s sought to spare travelers the sight of Roman soldiers’ private parts.

Created by Catalan artist Joan Miró in 1978 and made up of 350,000 tiles, this mural is the only large-scale glass mosaic the artist ever created.

An absolutely beautiful 200-foot stained glass installation traces the evolution of knowledge.

Massive still life just off the highway in Kansas.

Entombed in this strange, white stone hill are the deadly remains of radioactive weapons production.