A son's promise to his dying father in the form of a covered bridge filled with thousands of seashells.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

A museum dedicated to "science, history and the arts" little changed since 1915.

Experience a charming 1930's version of "infotainment."

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

An exotic wildlife habitat right off The Strip.

Four hundred granite steps were built into this massive rock by the National Park Service.

Quite simply the largest tree in the world (by volume).

A massive volcanic plug is now a protected area that hosts a number of bird species.

This stretch of beach along California's central coast is a busy highway for the largest seal in the northern hemisphere.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

An homage to everyone's favorite prehistoric cartoon family.

This French castle is said to have once held the Holy Grail but is now a gorgeous mountaintop ruin.

This hilarious English intersection is an automotive whirlpool.

The granddaddy of English geoglyphs dates back to the late Bronze Age.

The first archaeological site discovered by aerial photography.

Famously misunderstood wonder of the ancient world

A giant white horse drawn on an English hillside may not have been intended to be a horse at all.

One of the largest megalithic complexes in England, which local legend holds is a wedding party turned to stone by the Devil.

Europe's largest prehistoric mound – burial site of a legendary king?

The largest stone circle in the world has ended up bringing up more questions than it has answered.

Following the trail of an old metro line, this scenic path is haunted by a creepy spriggan statue.