One of the last doorless, continuously moving elevators still in use in the U.K.

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

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

The world's largest sticker ball weighs in at a mighty 231 pounds.

A metal ring in the middle of the road marks the exact spot where the Soviet satellite crash-landed in 1962.

A piece of John the Baptist in the American heartland.

The ruins of a 19th century shelter run by the Independent Order of Odd Fellows.

Three markers installed over the course of 140 years mark the point where Arkansas, Missouri, and Oklahoma converge.

Tiny observatory made big contributions to the study of the Earth's motion.