Live Science on MSN2d
Stonehenge isn't the oldest monument of its kind in England, study reveals
Flagstones, an ancient monument and burial ground in England, is older than Stonehenge, a new radiocarbon-dating study finds.
AOL9d
The Tallest Monuments in the U.S., Ranked
The Pilgrim Monument marks this historic moment, standing tall over Cape Cod. Its design was inspired by a famous tower in Siena, Italy. Visitors who climb the 116 steps and 60 ramps inside are ...