This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

Those who own or stay at this 500-year-old, allegedly cursed house often meet terrible fates.

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

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

Venice's island of the dead.

Just across from the "Last Supper" painting is the famous painter's vineyard, a gift received for creating the masterpiece.

This monastery built into a cliff hides a perfectly preserved hermit in a glass coffin.

The world's longest and deepest train tunnel.

The Swiss hilltop housed an early 20th-century vegetarian nudist colony.

The bears of Bern have been a city highlight for over 500 years.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

The alpine falls where Sherlock Holmes apparently met his demise can actually be visited.

This amazing pedestrian suspension bridge in the Swiss Alps would give Indiana Jones nightmares.

A once-thriving hotel in the Swiss Alps couldn't compete with climate change.

A breathtaking bridge that crosses a vast gorge over a river's torrents, and has a tale of a devil architect attached.

The first public building in Savannah to offer air conditioning was a luxurious cinema that still operates today.

Local myth claims this is a Sears catalogue home with its windows installed upside-down.

"X" marks the spot of an echo chamber in the middle of a plaza.

A statue honoring 44 continuous years of greeting passing ships.

The remains of a 1st-century aristocratic Roman town house featuring beautiful well-preserved mosaics.

These ruins once flourished as the capital of the Lydian kingdom, often credited with the invention of metal coinage.

A charming beach town in Turkey captures all the colors of the rainbow.

The ancient latrines of the Greeks, in all their public glory.

An oasis of shade and color amidst the bustle of the old city.