Towers

A 246-foot-high revolving restaurant rises unexpectedly from a forested Finnish hilltop.

Colorful curls of hand-blown glass form a captivating tower in San Antonio's Central Library.

Built to test magnetically levitated elevators, the tower also boasts Germany's highest visitor platform.

Dedicated to the first German Chancellor, Otto von Bismarck, this aging edifice is the only one of its kind in the Americas.

A sophisticated astronomical tower built by one of the greatest Persian scholars of the Islamic Golden Age.

During World War II the Thorp building was guarded by the OSS, FBI, and US Navy because of the top-secret bombsight being produced there.

This picturesque lighthouse at the edge of the Irish Sea looks like a giant stone pencil.

A half-size replica of the World Trade Center towers above Tulsa.

The tower in this 1,000-year-old mud-brick village seems to vibrate for no apparent reason.

A tiny basalt mountain with an observation tower overlooking the beautiful Bavarian countryside.

Long tunnels run under the ancient chariot racing circuit to the tower.

The old fire tower is one of the last of its kind in the United States.

An oddly conical beacon perched atop beautiful Irish cliffs.

A replica of one of the more than 15,000 civilian lookout towers that lined the U.S. coast during World War II.

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.