This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

An ultra-modern diversity park in Denmark has turned an entire city block electric pink.

Hidden in a secluded Greek cove is a pristine beach marred only by the rusting smuggler's hulk stranded on its shores.

Mirrors and glass shards cover every inch of this arrestingly beautiful mosque.

A glacier pocked with ice caves and surrounded by rainforests.

The largest ice cave in the world is thought to be the entrance to hell according to Austrian legend.

Breathtakingly blue walls shimmer inside the "Glacier Behind the Town."

This highest bridge in the world spans such a great chasm that it had to be established using rockets.

Visitors can swim with vicious predators in Crocosaurus Cove's plastic daredevil enclosure.

These grassy undulations on a stretch of University of Michigan campus aren't bad landscaping, they're art.

One of the world's steepest streets seems to have houses sliding down it.

Rusting, graffiti-covered tanks litter the beach of this island, once used by the U.S. military for target practice.

This colorful artistic feature atop a Danish art gallery allows visitors to stroll through a rainbow.

A perfectly circular stronghold constructed in the 10th century is now a nucleus of Viking culture housing a museum, village, and reenactment of an epic Viking battle.

The second-largest gold nugget in existence, displayed in a Las Vegas casino conveniently named the Golden Nugget.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

This relatively recently abandoned brewery is a tragic reminder of the continuing effects of Hurricane Katrina.

An Aztec snake god has taken the material form of an apartment complex.

A little piece of Paris in the sultry south of the U.S.

Formerly known as National D-Day Museum, this collection commemorates the battles of Normandy and WWII.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

The second oldest continuously operating bar in Louisiana.

If New Orleans is the birthplace of the "cocktail," why does their own museum of cocktail memorabilia beg to differ?