An overlooked memorial honoring the local Washington residents who died in World War I.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

Before Nixon, "watergate" meant canals.

This seemingly out-of-place gas station by the Watergate hotel was once described as the most expensive gas station in the world.

A portal into the bricked up canal that runs through the heart of Washington D.C.

Once the most flame resistant building in the country, the South Carolina Historical Society building was almost burnt down in a fire.

South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.

This small memorial is almost as well concealed as Smalls himself was on the night he sailed to freedom.

Visitors to this shop will find fossils, minerals, meteorites, skeletons, oddities, and much more.

Believed to be haunted, this old cemetery is beautifully adorned with Spanish moss hanging from the trees.

A luxuriant botanical garden below sea level.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

A lush indoor jungle fills this bustling Madrid transportation hub.

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

Fantastic views and thousands of love locks.

A peaceful, unique botanical garden complete with waterfalls, mini islands, and swans.

Florida's oldest bar was once a morgue, complete with a hanging tree and gravestones.

It's a pretty creepy lock-up.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

Location of a reliquary containing bone fragments of 18 saints.

"Bite or Smite" became the unlikely mascot of a Tampa suburb.