Used as an example in one of the first dictionary entries for "museum" in 1706.

An extraordinary collection of scientific instruments - and Einstein's chalkboard - inside the world's oldest purpose built museum building.

Hidden in plain sight, this creepy sculpture watches from above.

The spot where three Protestant clergymen were burned at the stake during the reign of "Bloody Mary."

Once one of the largest rooms full of books in the world, this bookstore basement is still a treat for bibliophiles.

A theatre built to house the rowdy Oxford graduation ceremonies became the stage for a debate about God's existence.

This 11th century tower is said to be the oldest building in Oxford.

Palace, temple, and pyramid ruins mark the ancient Mesoamerican capital of Totonacapan.

This collection of bronze hands comes from astronauts, presidents, baseball greats, and more.

A mythical chimera first sculpted in 1936 as a mix of the main animals of Texas livestock.

A trio of colossal statues spread across a Dallas neighborhood chart the emergence of a giant robot born of a locomotive and spilled gin.

A "Texanic" (gigantic Texas) collection of Art Deco architecture at Dallas' historic Fair Park.

A serene temple with stunning stained glass hides in downtown Dallas.

This downtown Dallas art installation is always on the lookout.

This crumbling UFO is one of only a few remaining "moveable ski chalets" of its kind.

The home of a former Minor League baseball team that beat Joe DiMaggio's New York Yankees in 1949.

Fears of Satanic worshippers swirl around five Celtic-inspired megaliths.

Of course the grave of JFK's assassin is surrounded by conspiracy theories.

A Prohibition-era casino once hidden as a palatial tea room.

Fans are known to leave tributes to these two brothers, both heavy-metal legends.