A man's home is his castle.

A star fort along the C&O Canal in western Maryland that protected America in three wars.

This one-room cabin where the young colonel slept during the French and Indian War.

This beautiful stone arch bridge wasn't even expected to stand for one day, but people have been crossing it for centuries.

One man's swirling six-acre monument of stone.

Now the final resting place of prominent artists and musicians, it was originally founded to separate the rich from the poor in death.

A peaceful international sculpture garden in upstate New York.

A once grand hotel is being retaken by the wilderness it once capitalized on.

A gigantic 10-foot tall stone man.

A sewing machine tycoon built this miniature castle for the people and to beautify a lakeshore.

Tour the world's largest deep-hole dimension granite quarry, where you can view the plant where gravestones are made and roll a ball down the outdoor granite bowling alley.

This New England covered bridge is home to the tale of a jilted lover known to haunt the area.

This rare polygonal meeting house is rumored to be built in a circle so that the devil has nowhere to hide.

A spring-fed pool so deep it's used for scuba diving as well as swimming.

Built in 1927, this pink stucco hotel once hosted stars of Hollywood’s silent movie era. Now it's being brought back to life.

A sprawling maze of used books piled from floor to ceiling.