Engineering

The world's largest wooden trestle stretches across this desert canyon in Anza-Borrego Desert State Park.

Mutant vegetables, transgenic mosquitos, and atomic rodents span the walls of this one-of-a-kind museum.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

Hundreds of protractors affixed to surfaces all over the city.

"The Most Boring Road in the State."

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

The world's tallest boat lift stands as a massive piece of industrial tourism.

Haven for steampunks.

Nondescript building owned by ExxonMobil working on siphoning Greenpoint Oil Spill out of the ground.

Known as the most dangerous bridge in the world, the Hussaini Hanging Bridge is only one of many precarious rope bridges in Northern Pakistan.

Old-fashioned knowledge and modern engineering create the world's only rotating boatlift.

Spain's stunning solar energy plant.