Towers

This line of 12 tower mills described in the story of Don Quixote is among the most iconic landscapes in Spain.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

The remnants of a creative early method of wildfire prevention.

The world's largest frame offers spectacular views of the city's past and present.

This park on the outskirts of Rome boasts two ancient Roman aqueducts and a medieval tower.

This stone tower in a small town's graveyard looks as though it would be more at home in a fairy tale.

A seven-story 1920s mausoleum outside Denver houses thousands of remains.

Several of these strange cone-shaped bunkers can still be seen around the former Nazi headquarters.

Italian director Pier Paolo Pasolini fell in love with this lonely 13th-century tower while making his most famous film.

The tallest minaret in Yemen is 150 feet high and entirely made of mud.

This hilltop ruin is of the hundreds of stone columns built in tribute to the first German chancellor.

The tallest building in the Republic of the Congo is a source of pride despite its towering maintenance costs.

The only surviving piece of Copenhagen's 16th-century defensive wall.

Known locally as the Jungfrutornet, this Medieval tower hides a dark legend.

This space rocket-like Buddhist stupa sits atop two giant arches and can be seen from out at sea.

Nine centuries-old fortresses guard the walls of this medieval Romanian city.

This lonely tower survived the landslide that devastated much of a Mexican mining town.