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

"Dark Sky Park" is heaven on Earth for astronomers, one of the rare U.S. locations with no artificial light pollution.

Once the "Eighth Wonder of the World," this iron railroad bridge was decimated by a tornado.

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

A toxic ghost town sitting atop a massive coal fire.

One of the last few period-correct, hand-operated canal locks in the country.

A throwback train ride transports passengers through one of the lesser-known national parks in the country.

The final resting place of the most famous sharpshooter.

This burger joint is named after everyone's favorite carnival prize and is adorned with a giant one over the door.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

The taxidermy remains of the most popular pony in children's literature.

The Grand Ole Opry's big voice came from a small home in rural Virginia where she was eventually buried.

The semi-reclaimed ruins of this canal were once part of an ambitious plan to reroute the mighty potomac.

At 207 feet, one of the world's longest continuous escalators.

The final resting place of two (or three) presidents, one vampire, and 18,000 Confederate soldiers.

The Cadillac Ranch for monster truck aficionados.

I-95's Tijuana-style celebration of kitsch at the Carolina border.

This modern castle sat empty for decades before a fire inspired its builders to complete its luxury halls.

Prehistoric animals decorate this popular outdoor park.

Elvis's own personal tropical hideaway.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

This replica of the Greek structure is in the heart of Nashville.

This Garden District mansion was built to be bigger and grander than its original owner's former partner turned rival.