The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

This head-spinningly bizarre Depression-era art cave is wall-to-wall quartz and Jesus.

148 feet long and in the middle of a verdant forest.

Enormous lake at the bottom of a unique cave system.

This small Arkansas town once had a close encounter with the Beatles, and are determined never to let anyone forget that. Ever.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

This historic train station has been converted to a locomotive themed hotel.

A key producer of charcoal iron in the early 1800s, the structure still stands today.

A 70-foot replica of the famed Eiffel Tower.

This simple, broken column marks the final resting place of one of America's most famous explorers.

Hiding behind a grocery store is a spectacular cavern carved as part of an old limestone quarry.

This limestone outcropping was once a ceremonial site for ancient Native Americans.

This 14th-century temple is also known as the "Temple of the Golden Pavilion" for its gorgeous gilded reliquary hall.

The "Jade Museum" is full of thousands of intricately carved works of art made from various precious stones.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

The alley connecting two of country music’s most historic venues has a rich history of its own.

Home to drunken tower-climbing goats... seriously.

Once a year, at exactly 11:11 a.m., this monument comes to life.

Every year, festive decorations appear on this juniper tree located in the median strip of a busy highway.

Originally conceived as part of a proposed Arizona State Capitol building in the 1950s, this structure built in 2004 stands as a monument to the architect's legacy.

These petroglyphs created by ancient Arizonians have withstood centuries of exposure to the elements.

The largest and most well-preserved petroglyph site in the Verde Valley.

The state's only comprehensive museum dedicated to the mineral that defined its history and economy.

Known as one of America's most beautiful public restrooms.