A monument to the center of the North American continent may be off by a few miles.

A cabinet of curious mathematical models and old calculators.

A 1930’s courtroom where John Dillinger and his gang went before a judge.

This supermarket offers shoppers a window into the past alongside their groceries.

A quartet of brightly colored mythical beasts stand sentry at this gateway.

The location of a citizen uprising that led to a gruesome act of mob justice.

One of the first monuments dedicated to the accomplishments of the great Vice Admiral, Horatio Nelson.

The ornate structure is part of a building boasting more marble than the Vatican.

The elaborate clockwork contraptions in this Scottish gallery create small worlds of whimsy and horror.

An abandoned tank sits in an empty London lot as a symbolic middle finger to local city planners.

This unassuming alcove in London’s famous Tower Bridge once served to capture, store, and display dead bodies from the River Thames.

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

Operational for less than a year, this mill produced more than 11,000 tons of chrome concentrate in its short lifespan.

Modeled after the labyrinth in Chartres Cathedral, this small-town Indiana memorial labyrinth sits half a world away.

Both funky and traditional, it's the oldest of its kind in Indiana.

This massive oak tree has ties to the first native tribes of the region and the founders of Texas.

A tall smoke stack and boarded-up buildings are all that's left of the pioneering plant.

An emerald-green grotto just a short trip from Austin.

Turning night into day in Victorian-era Austin to thwart a serial killer.

Roadside Americana, fairy tale characters, and Austin quirkiness come together at this magical course in the heart of Texas' capital city.

The ruins of this gorgeous clifftop castle look like something from a fantasy novel.

Accessible only at low tide, the deserted island is dotted with World War II ruins.

This series of Scottish caves has no clear purpose other than baffling historians.

Dictionary Johnson’s favorite feline.