The site of a 19th century "dream city" that almost rivaled Chicago before being swallowed by the Indiana sand dunes.

A surprisingly large number of show waterski teams are located here in Wisconsin.

At this Wisconsin museum there are real ducks, fake ducks, duck calls and a Duck Blind.

This holy goods emporium is where priests go for a little retail therapy to outfit their churches.

The oldest continuously-operating tavern in Wisconsin used a clever loophole to serve alcohol during Prohibition.

One of the last surviving C-97s sits in a field in front of a Wisconsin inn.

The spaceship-like theater, which is still in use, was one of the most popular exhibits at the 1964 New York World's Fair.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

This forgotten building was one of the few Philadelphia-area breweries to survive Prohibition.

A rock maze opens up to a panoramic viewpoint at an abandoned mine full of ghost stories.

Dr Barnes' $25 billion private collection of art and arboretum.

A mine fire has been burning under the deserted town since 1962, but this church is still going strong.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

An abandoned stretch of highway, deteriorating next to the operational one.

This roadside stand packs 300-plus varieties of tomatoes, from "Maiden's Fire" to "Kaleidoscopic Jewel."

A pride of the state, this working museum crafts pottery mosaics in the style of Pennsylvania's earliest European settlers.

America's smallest national park site is the former residence of exiled Polish national hero Thaddeus Kosciuszko.

This museum tucked below a charming cafe gives a brief snapshot of photographic history.

An Irish Memorial commemorating those who perished due to potato blight.

The world's third-largest crystal sphere has sat in the Penn Museum since 1927 with the exception of one outlandish theft.

The last street in Pittsburgh that's paved with wood.

The world's largest dark sky preserve is a Canadian park established to preserve the country's last wood bison.

The smallest pub in Britain was once a cabinet of curiosities and it still has the dead cat to prove it.

This former boomtown "island" is now submerged below Folsom Lake.