The interior of this Serbian royal family's mausoleum is covered with exquisite mosaics.

This exclusive resort has completely covered a tiny Balkan island in a 5-star warren of guest rooms.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

A full figure 4th century incorruptible saint lies in a glass coffin in Croatia.

Bridge that died in war and was resurected.

This museum preserves the hand-dug tunnel that kept Sarajevo afloat during the Serbian siege.

Oriental bazaar in the heart of Sarajevo.

The first mosque in the world to receive electricity.

The place where World War I began.

Ruins of a Carnegie family mansion on Cumberland Island.

This twisty sign depicts the chain's first logo.

A statue honoring 44 continuous years of greeting passing ships.

This kitschy tavern is also home to rare early editions of "Treasure Island."

One of Savannah's oldest and most haunted cemeteries, featuring graves desecrated by Sherman's Union Army.

An underground magnet for ever-changing street art.

The Battle of Atlanta in 360 degrees, featuring a corpse that bears a striking resemblance to Clark Gable.

The largest puppetry museum in the United States houses the world's most complete collection of Jim Henson artifacts.

Mai Tais and Navy Grog served up in one of the original tiki bars.

The home of a 19th-century author who brought African-American folktales to the mainstream is now Atlanta’s oldest house museum.

A more than 260-year-old crypt built on Boston's oldest English burial ground.

The site where Charles Dickens gave his first public reading of "A Christmas Carol" in the US.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

A luxury hotel constructed out of a former jail.