Towers

Built in the 16th century, the tower is now in ruins.

Dedicated to "the father of U.S. life insurance."

This Colorado fire station has been in continuous operation for more than a century.

A spiralling hourglass-shaped tower rises from the forests in Denmark.

This elevator was built in 1907 to connect two neighborhoods separated by a steep, rocky cliff.

A timber transport car and a team of horses were needed to carry this lookout to the top of Mount Tarrengower in the 1920s.

This tower once served as a radar station during the Cold War.

The last example of an innovative piece of surveying equipment now stands in its inventor's hometown.

On top of a hill, this Catholic church overlooks the most Catholic island in Greece.

Launched by Napoleon's soldiers more than 200 years ago, a cannonball remains embedded in the tower wall.

The largest Christian church in the country is a complicated symbol of Spanish colonialism.

This fortified L-shaped tower is the ancient seat of clan Hannay.

A vintage fire engine is hidden inside this World War I-era water tower.

Walk up a ramp through a forest for panoramic views of Lake Michigan.

The world's tallest carillon is located at the top of this skyscraper in Mexico City.

Once the tallest building in Chisinau, this unique tower is a relic of Soviet architecture.

One of Mexico's youngest major cities still holds on to this structure representing its short modern history.