One of the greatest collections of coins in the world is housed in the former mansion of an archeological pioneer.

This striking sculpture of Icarus honors Greece's fallen flyers.

This is not only one of the oldest collections in Europe, but also possibly the most beautiful.

This small 16th-century church in Athens is almost entirely surrounded by a modern building.

You can walk through the first Boeing Air Force One, which famously carried JFK's casket from Dallas back to D.C.

Inside houses a vast collection of military aircraft and missiles spanning the ages.

Inside this wonderland of weird, visitors are treated to a collection ranging from skeletons to haunted artifacts.

This recently restored timepiece has stood all around Kansas City.

Less a museum than a bizarre fantasy world created by artists and engineers.

This historic cliffside mansion uses a natural cave for air conditioning.

Two Ming Dynasty lion statues guard the entrance to the journalism school.

The obelisk meant to mark the founding father's grave at Monticello is actually on the University of Missouri campus.

The iconic remains of the original Academic Hall that burned down in 1892.

Curious cave that stays a cool 56 degrees all year long.

The fairy tale castle of the “fairy-tale king,” this was also the inspiration for Disney’s “Sleeping Beauty.”

A unique bridge with an equally unique view.

A small but immensely extravagant palace built by the "Night King."

The phrase "the shot heard around the world" was coined after a skirmish at this bridge.

Louisa May Alcott based “Little Women” on her experiences growing up in this house with her sisters.

This location holds the truth to what truly happened that faithful night.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

This nearly 200-year-old restaurant's history includes an exiled French prince, JFK, and a very hungry Daniel Webster.