This might just be the TARDIS of bookstores.

A converted hangar displays dozens of helicopters, from a famous 1943 rescue chopper to several autogyros.

A comprehensive collection of toy and model trains, largely from the mid-20th century.

A huge railroad museum with over 100 pieces of rolling stock focusing on the railroad history of Pennsylvania.

The oldest farmer's market in America is so ancient it was approved by the King of England.

Don't get it twisted: This is the oldest pretzel bakery in the United States.

This restored 18th-century house was once the home of Lititz's first tobacconist.

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

The little-known final resting place of one of America's greatest writers.

This historic lighthouse was well known for the large number of women who served as its keeper.

The historic home still shows the scars from a little run-in with the British in 1813.

Designed to commemorate the founding of the first settlement in Delaware.

Sip colonial-era cocktails at this monthly recreation of a 1740 watering hole.

A grotesque Fiji merman dwells within this traditional Dutch-style building.

WWII-era bunkers are hidden under the beaches of this picturesque park, which is still scattered with wartime watchtowers. .