A tiny one-room church built after one man's prayer for healing was answered.

Home of the only civilian casualty at the Battle of Gettysburg.

Surrounded by industrial sprawl, a small monument marks the site of William Penn's first landing in Pennsylvania.

A bronze statue of Mister Rogers in the neighborhood where he grew up.

A beloved horticultural oasis on the grounds of a wealthy family's former estate.

This shrine dedicated to the Virgin Mary is also a tribute from a mother to her fallen son.

A "house to which to flee" for settlers in colonial Pennsylvania.

One of the oldest Catholic churches in the U.S., situated just east of Gettysburg.

Designed by Horace Trumbauer in 1893, this Gothic-style castle is now a home for academics.

An eccentric priest's tribute to George Washington, this chapel tells the story of the American Revolution.

The humble field where the first Major League Baseball game was played.

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

The oldest surviving presidential residence in the United States.

It marks the spooky spot where the bodies of two young boys were found in the 19th century.

An ideal wedding spot that is almost too ideal.

A tour de force of a fountain, memorializing a man who loved fountains more than anything else.

These lush botanical gardens employ the most purrfect pest control force.

An outlandish shoe shaped house built by an eccentric millionaire.

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

This church in Pittsburgh is home to the largest collection of religious relics in North America.

This Old Testament garden features 100 plants from biblical times.

The graffitied ruins stand hidden within the Pennsylvania woods.

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

The crumbling remains of Juneau's explosives storage site.