An obelisk marks the spot where a British explorer's heart was buried before the rest of his body was transported to England.

This slowly crumbling mansion was home to one of East Africa's richest and most powerful slave traders.

After Christopher Columbus died, his son built a fancy house to rule from.

In Zanzibar, a historic 19th-century palace is a reminder of the world's shortest war.

This stunning 15th-century royal hill fort preserves the age of chivalry in Rajasthan.

Legend says if you stick your thumb in the hole and it gets wet, your wish will be granted.

The abandoned palace stands as a wounded but proud beacon of Afghan hope.

The awe-inspiring ship from the golden era of cruising has an incomparable history and a reputation as one of the world’s most haunted places.

In California, colorful roadside signs remind us all that love transcends borders.

This retro, UFO-like structure is a remnant of the Soviet-era circus.

A memorial to the unknown and unheralded men and women of the Cold War military and intelligence services.

This commanding mausoleum holds the remains of Muhammad Ali Jinnah, the founder of Pakistan.

An ode to the friendship between four Pacific Rim countries.

This irregularly shaped sea fortress has defended not one but three different sovereign states.

A stoic rock cairn is all that remains to remember one of the more brutal instances of frontier treachery in American history.

Back in 1952, you could get a mushroom cloud chaser with your atomic cocktail.

The best Tiki bar in Las Vegas.

A monument to a survivor of harsh pioneer life, frostbite, and primitive surgery.

Hundreds of drawings left by the land's previous inhabitants remain mysterious.

The ornate miniature mansions were built for Istanbul's feathered residents.

Chicago's Navy Pier on Lake Michigan was a training hub for aircraft carrier pilots during WWII.

A display of magnificent stained glass windows is the first exhibit of its kind.

Years of archaeology, just chillin' by the water cooler.

The embalmed remains of the communist leader lie within a custom crystal coffin.