Where hills of dirt conceal the burial ground of one of the most powerful ancient Native American societies.

Despite its lavish ornamentation, and wholesome lifestyle of its devotees, this mountain commune has faced its share of issues.

Two gems of Beaux Arts architecture that have been sitting vacant for years.

Two insane asylum bodies embalmed by an amateur.

Pittsburgh’s largest and most detailed model train display began as one WWI veteran’s hobby.

A beautiful hidden gem in central West Virginia.

A beautifully restored 19th-century house that’s possibly haunted.

The only brothel on the National Register of Historic Places.

Bronze statue marks the spinach capital of the world.

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

House of vintage taxidermy and Steampunk sculptures in a quiet Pittsburgh neighborhood.

The largest earthwork effigy in the world.

Sections of the iconic limestone columns have been left uncleaned as a reminder of the city's polluted past.

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

Mutant vegetables, transgenic mosquitos, and atomic rodents span the walls of this one-of-a-kind museum.

This monumental Jesus is often referred to as "Our Milk Carton With Arms."

A take-out restaurant that only serves cuisine from countries with which the United States is in conflict.

Despite being stolen multiple times, this civic electrician's street corner Snoopy won't be stopped.

When oil was discovered just outside of Pittsburgh, the city became home to this regional stock market.

This shop filled with oddities and knick-knacks is named for a 19th-century charlatan.

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

Pennsylvania's own Roswell-style UFO mystery.

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

This public park was the site of the largest civilian disaster of the Civil War.