Advice-columnist's bell tower, paid for with pennies.

Weighing 30,000 pounds, this monument represents Detroit's first industrial era.

What was once the largest NFL stadium.

This museum was once the home of industry titan Matilda Dodge Wilson.

The remains of a failed canal can be found in several towns near Lake St. Clair and is known historically as "Mason's Folly."

Over 60 chemical plants and oil refineries sit in a 15-mile-wide section outside town.

This unusual three-way wooden foot bridge spans two rivers at once.

World's largest Christmas store.

In a city crazy for seashells this museum educates and amazes visitors using the wonder of cast-off exoskeletons.

A telegraph station used to send information from Cuba to the U.S. during the Spanish-American War.

Visitors dating back to the 1600s carved their marks in the stones of the iconic tower.

There has been an astronomical clock on this spot since the 14th century.

A precariously balanced rock perches on the edge of a cliff created tens of thousands of years ago by glacial erosion.

These powerful, if squat, Canadian waterfalls flow in different directions depending on the time of day.

The final resting place of 121 victims of the RMS Titanic, 42 of which may never be identified.

The world's smallest drawbridge.

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

The abandoned Bermudian home of a British naval leader is surrounded by crumbling sporting fields and the graves of convicts.

Rumored to be the famed pirate's lookout tower, this historic stone structure is now just watching for tourists.

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

The remnants of an abandoned, 19th-century gold mill along Aruba's rugged northeastern coast.

Once a favorite playground for the world's most illustrious guests, Hotel Nacional's secret weapons and bunkers reveal a more menacing side to its golden history.

A focal point of the Cuban government, this city square features one of the most iconic images in the country.

A Cuban artist reclaimed his impoverished neighborhood as a dreamy folk art kingdom.