Mausoleums, astronomy, and animatronic dinosaurs at this memorial to an assassinated American president.

Ohio's 19th-century communist micro-society.

The Pennsylvania shopping center was once the setting for the 1978 film, "Dawn of the Dead."

The last funhouse of its kind, where guests enter through the mouth of an 80-year-old blue whale.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

An 18th-century Catholic church converted into an eccentric temple of music and bacchanalia.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

Nothing says indulgence like a 1,500-pound chocolate castle.

There aren't too many operational funiculars around, but Pittsburgh has two!

Could it have picked a better place to land?

This Pennsylvania cave holds evidence of the oldest known inhabitants of North America.

Rows of 19th-century brick ovens used to process coal into coke form the center of a wooded park.

One of the oldest surviving lock houses on the Ohio River.

After covering almost 1.5 billion acres, the survey's still not finished.

First a root beer ad, then a golf course clubhouse, and finally a massive teapot.

This tiny museum kept in a B&B laundry room holds the death mask of notorious bank robber Pretty Boy Floyd.

Housing the history of a small Ohio town that is known to some as the pottery capital of the United States.

Hundreds of 19th-century characters descend upon an Ohio town every autumn.

This recycled wax museum may be the only one that features John Travolta in a Bible scene.

An office built to look like a giant basket.

Bison, America's national mammal, are staging a slow comeback in Ohio's prairie parkland.

A monument to a Native American leader who was known for never breaking a promise and met his end after signing a deal with white settlers.

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