A grandiose octagonal home crowned by a large dome stands out among the antebellum mansions.

The world's largest clay lick, where parrots gather to snack.

What was meant to be a temporary exhibit is now a permanent fixture at the St. Louis Zoo filled with beautiful birds.

God's Saharan sandbox of wrath.

This massive Brazilian church is built like an angular, technicolor pyramid left by Mayans from the future.

This historic hotel on Bathhouse Row in Hot Springs National Park has a storied history of gangsters and baseball greats.

New Zealand's west coast is one of the best places in the world to view these large seabirds.

Mount Nyiragongo has erupted at least 34 times since 1882 and is home to the world's largest lava lake.

A narrow strip of land is home to the tallest migrating dunes in Europe.

The ruins of an ancient temple to the Aztec wind god discovered in the middle of a metro station.

The central mosque of this Mali town is entirely built from mud.

These massive moving sand dunes have swallowed an entire village and are still on the run.

Inside this mountain lies several kilometers of breathtaking caves.

World's largest bell sits on the grounds of the Kremlin in Moscow.

Ha Long Bay's "Cave of Surprises" houses a popular phallic rock formation.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

This peaceful Sikh gurudwara serves around 50,000 free meals every day within its gilded walls.

Cairns built to bring travelers good luck stretch across the land like miniature stone mountains.

A small man-controlled waterfall powers an Art Nouveau elevator and is accessed via narrow gauge, solar-powered tramway.

World Trade Center memorial likened to a woman's sexual organ.

This Parisian gem is one of the most incredible ethnographic museums in the world.

The original home of the Lego has a huge amusement park dedicated to the iconic plastic toy.

World's strongest whirlpool.