In downtown Oslo, a menacing and terrifying relief clings to a church wall.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

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

The bad-ass ride of a soul legend, housed in one of the world's few soul museums.

Elvis's own personal tropical hideaway.

An eerie and beautiful group of columns mark the site of a grand mansion lost to time and fire.

The second-largest ceremonial mound in the United States is an artificial hill that is loosely shaped like a pentagon.

This replica of the Greek structure is in the heart of Nashville.

The grave of America's 11th president is not in some grand monument but instead it's hidden away on the grounds of the Tennessee Capital.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

A snapshot of the city's fascinating voodoo culture.

A modern day curiosity cabinet.

The 100-year-old public collection of a New Hampshire dentist that contains taxidermy, Native American artifacts, and a pair of mummy hands.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

Yo, Adrian!

The only surviving fragment of the lost Narragansett Pier Casino.

Archaeological sites and great food inside the island's largest mangrove forest.

Europe's oldest still-operational tea farm also boasts a spectacular view.

A charmingly eccentric magma chaser presents his complete history of the island's eruptions since 1947, in cinematic form, just for you.

Standing atop 2nd-century Roman ruins, this church is one of the oldest and most iconic in Old Cairo.

Breathtaking and huge 430 year old maps of Italy.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.