Macabre astrological automaton clock dating to the late 1400s.

The topiary maze at the Habsburg hunting lodge.

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

One Portuguese poet described this cape, the westernmost point in mainland Europe, as "where the land ends and the sea begins."

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

Budapest's Communist-era statues, banished to the suburbs.

Museum dedicated to the terror regimes of Hungary.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

The only remaining historic maritime signal station in the United States.

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

The poems Nathaniel Hawthorne and his wife Sophia etched into its windows are still visible today.

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

The Wright Tavern is possibly the most important building in Concord Massachusetts to the American Revolution.

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

Two stone columns flank the grand Venice square, but there were supposed to be three.

An extensive collection of reliquaries containing the bones of saints housed in the largest Catholic church in Venice.

Go inside to really appreciate this 500-year-old technological masterpiece.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

This small section of the Sleepy Hollow Cemetery is rotten with famous authors' graves.

This line of 12 tower mills described in the story of Don Quixote is among the most iconic landscapes in Spain.

"Portugal's Stonehenge" is made up of nut-like stones aligned with the heavens.

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.

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

The site of Paul Revere's historic two lantern warning.