Atlanta's strange assortment of concrete pillars inspires reflection in some, confusion in others.

Mai Tais and Navy Grog served up in one of the original tiki bars.

The story behind the mysterious symbol painted in front of the historic university's famous Rotunda.

Glacial erratic or man-made dolmen? It probably wasn't druids.

An abandoned underground bunker not far from downtown New Orleans.

An alleyway plaque is all that remains of the independent Texas' envoy that forgot to pay their rent for over a century.

The anatomical-pathological collection of a man who changed surgery.

This collection of illusory paraphernalia has been culled from the history of London's premier magician's club.

A kaleidoscopic warehouse-maze of handmade neon signs.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

A tongue-in-cheek arcade where the games are based on everyday life.

Hidden beneath the streets of London is a secret subway that only carried mail.

A little bit Wonkatania, a little bit pink elephant.

A quirky assortment of musical marvels from around the world.

Rusting away on the edge of New Jersey are the remains of a Cold War missile launch site.

A world-class collection of mechanical musical instruments and automata.

These eerie outliers of the lightning bug family glow a mysterious blue color.

Hidden in an Italian forest is a completely homemade amusement park that has taken a lifetime to create.

A modernist landscape of water and sci-fi concrete.

A toxic ghost town sitting atop a massive coal fire.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.