Towers

This short white tower is all that's left of Scotland's first permanently manned lighthouse.

Over 100 towers were built in Bologna during the Middle Ages, but only 22 survive.

A beautiful lighthouse with as many steps as days in the year, as many windows as weeks, and as many levels as months.

A statue of a boy looks up at where the famous rival to the Leaning Tower of Pisa once stood.

An abandoned tower once used to study the cosmos hides within a thicket of greenery.

Lyon's miniature version of the Eiffel Tower was built as a statement in support of French secularism.

This tallest folly in the world began its life as an elaborate factory chimney.

This 600-year-old tower was built as a comfy residence for cherished pigeons.

A remarkable medieval structure born from a 14th-century disaster.

There's an exclusive Beefeaters pub hidden in the Tower of London.

These beautiful historic watchtowers were used for both scanning the desert for enemy invaders and observing the celestial world.

This tiny hotel perched atop a 50-foot tower really puts things into perspective.

This hulking behemoth is actually five interconnected towers built in the 1960s.

A 63-foot-tall swinging ball hypnotizes passersby, and proves to any remaining doubters that the Earth is spinning.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

An eerie collection of the surviving structures from a past celebration of the future.

A towering monument in Spain has proven to be more labor-intensive than initially planned.

Every summer, an open-air swimming pool appears at the base of a Finnish city's beloved winter attraction.