Legends surround this jagged rock formation in the New Mexico desert.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

A museum devoted entirely to the rattlesnakes and snake-related art.

The smallest bar in Amsterdam has stayed in the family since 1798.

The attic of a four-century-old canal house hides a clandestine church.

You would never come across this tiny green oasis if you didn't know it existed.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

This grisly effigy displays an early Christian martyr who was skinned alive and beheaded.

Artistic tombs, monuments, and a beautiful "Hall of Fame" lurk inside this cemetery.

This poignant art installation raises awareness of violence against women.

One of the most well-preserved castles in Italy also contains a rare medieval example of a port fortification.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

A local student's chance encounter with Keith Haring led to the creation of one of Europe's largest murals.

This vast masterpiece of Moroccan architecture spreads across 20 acres.

Fortune tellers, snake charmers, poets, and storytellers all gather on this historic square in Morocco.

This popular tourist cave was ignored for almost 200 years before being mined into an attraction.

This impressive working clock made of 16,000 plants changes its flowers twice a year.

A tunnel that brings more than a century of history to life from the deepest parts of the Niagara Gorge.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

A contemporary fresco movement illustrates the region's rich history.

One of the best-preserved Roman amphitheaters is still used today, but for less brutal events.

This narrow fjord-like bay is the largest ria in the Mediterranean Sea.