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

The angel of death appears to weep black tears at this grave marker.

Rare recess caves fill this unbelievably beautiful Ohio park.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

A small square plaque marks a failed assassination attempt that could have changed history.

This century-old cinema house has a marquee that has been hand painted by a single man for over 25 years.

A museum dedicated to a secret military hospital hidden beneath a castle in Budapest.

The abandoned "Red Star Train Graveyard" is the final rusting place for precious artifacts of train history.

A 19th century artistocrat's mansion, turned into a library, hidden in a modern library.