Touching this 18th-century Scottish philosopher’s toe allegedly conjures good fortune.

At the time of its completion, it was the tallest dam in the world.

An unusual geological feature towers over the remains of a dark episode in United States history.

Tucked among the sand dunes overlooking a Welsh beach, a real-life tribute to a fictional elf.

This museum offers a glimpse into early 20th-century Glasgow life.

Once designed as the entrance to Buckingham Palace, this structure was later relocated and stands as a victory arch.

Modeled after a famous church in Vienna, Austria—but in Helena, Montana.

This road winds through the steep coastal cliffside offering spectacular views for those who brave the drive.

This African beach is home to thousands of rare mainland penguins that are known for their annoying voice.

A slightly creepy gallery of plaster cast models in the same museum as Michelangelo's David.

Renaissance hospital featuring a rotating door into which unwanted babies were dropped.

The oldest operational cathedral in the U.S. has one shell of a way of projecting speakers' voices.

The fountain marks the area where hundreds of accused witches were burned at the stake.

An exercise in patience and imagination, where Mother Earth turned common stuff into precious hidden treasures.

One man's ambition created this psychedelic log home.

A 19th-century Gothic, castle-like statehouse by the Mississippi River.

This cathedral dedicated to Louis IX, sainted King of France, holds many secrets.

A roadway designed for a visiting monarch.

The fifth-longest natural arch in the world, and the longest outside China.

It's safe—and permitted—to walk across these twin natural sandstone arches.

This two-room shotgun shack in Tupelo is the birthplace of a King.

A jaw-dropping brutalist space church seems to have crash-landed in the middle of America.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

This monument is dedicated to those lost on June 6, 1944, in the town with that day’s highest per-capita casualty rate.