Made of giant chains and hung with shackles, this iron cross honors those unknowns who perished under American slavery.

This knobby, drooping New Orleans oak is a favorite place both for climbing and for meeting giraffes.

Millions of numbers carved in glass represent the tattoos forced upon victims.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

Two thousand artifacts from around the world collected by one woman who loved to travel.

Rhode Island's tallest building bears a resemblance to the "Daily Planet" building and has been empty for more than five years.

A virtually untouched "home on the hill" for the flora and fauna of Rhode Island.

Final resting place of one of the classic authors of horror literature.

Las Vegas's very own 40-foot-tall fire-spewing praying mantis.

A blacklight mini-golf fever dream pays tribute to the iconic rock band.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

Towering high above the neighborhood of La Candelaria, the church is easily recognizable by its distinctive red-and-white striped facade.

Pilgrims each carried a brick to the top of Mount Monserrate to help build this historic sanctuary in Colombia.

A celebration of Colombia’s premier contemporary artist.

This Bogotá museum houses the world's largest collection of pre-Columbian gold relics.

The oldest continuously occupied public building in the United States.

This opulent Pueblo Deco movie palace melds Art Deco and Native American motifs.

The ruins of this abandoned fort now stand as a picturesque reminder of America's march West.

This volcano rises like a giant anthill from the plains below, with a road spiraling up to the rim.

Eat like pre-Columbian Native Americans in this New Mexico restaurant within the Indian Pueblo Cultural Center.