The U.S. Navy's last diesel-electric submarine rests half-submerged in the middle of Portland.

10,000 flowered plants bloom in the City of Roses.

Three and a half miles of cliffs, rocky beaches, Gilded Age mansions and 40 Steps to nowhere in particular.

Beautiful Gothic-inspired lighthouse stands out among the run-of-the-mill striped fare on Bodies Island.

This shifting North Carolina sand dune is an odd little desert surrounded by oceanic forest life.

So many migrating birds roost on the bridge, it has a special summer speed limit.

One of the only Florida forts to remain in the hands of the Union all through the Civil War still stands as a historic stronghold.

The capital of the Cayman Islands is a center of offshore banking, but gets battered by blistering hurricanes.

This bleach-white graveyard overlooking the ocean is accessed through a tunnel.

Once a strategically imperative naval base, portions of this Bermuda dock complex now serve cruise ships.

A 200-year-old collection of oddities and medical paraphernalia.

A scattered trail of street art adds a pop of color to the city's stark structures.

Displaced highlanders would take shelter from the wet Scottish climate under the large walled bridge at Glasgow Central Station.

This stately monument has been wearing a traffic cone hat for decades much to the delight of the locals.

This Scottish museum is the only one in the world to focus not on one religion but all of them.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

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

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

A six-ton wedding present for the King of the Scots.

The final resting place of soldiers' loyal canine companions.

Ancient cliffs resembling a kilt on Scotland's second largest island emit an entrancing sound.

Once a private collection, now the only museum of arms and armor in the Western Hemisphere - CLOSED.

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

This Connecticut chapel is a starkly modern, and surprisingly colorful, architectural rebel.