This derelict superstructure was a very important warning system for the Soviet military.

The eerie burnt-out remains of a prominent building where 30 protestors lost their lives.

The most loyal of little dogs, or a Victorian era publicity stunt?

One of Ireland's most infamous prisons for rebels including men, women and children.

A museum marks and documents the site of the Titanic's launch.

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

The highest point in South Carolina was once owned by an energy company that neglected it but now the state is taking it back.

Who needs fancy modern water slides when this giant North Carolina rock works just as well?

One street divides a single town that stands in two U.S. states.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

The unbelievably opulent home built for an infamous newspaperman.

A graceful natural rock formation stands astride the point where the Gulf of California meets the Pacific Ocean.

Every equinox this Maya pyramid puts on a spooky ancient light show.

These azure waters were thought to lead to the Mayan Underworld.

This evocative New Jersey statue memoralizes the Polish victims of a Soviet massacre.

Lie in a hammock where George Washington stood.

In its day this historic fort held 100 cannons pointed in almost every direction to protect New York.

Twice a day one of these tragic bronze mariners drowns with the tide to remember all those the sea has taken.

On the Hudson resides one of the largest clocks in the world.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.

The world's largest rotating world.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

A walk through the historic city center, under the streets of Seattle.