A giant Troll lurks under one of Seattle's oldest bridges.

A layered tribute to the work of mosaicist Isaiah Zagar.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

A walk through the historic city center, under the streets of Seattle.

An enormous, inside-out glass globe built in 1935.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

An artsy hidden staircase leads to breathtaking views of San Francisco.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

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

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

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

To honor a beloved Austin radio DJ a neighborhood bridge has been covered in a loving mosaic.

If you can look past the nearby sewer pipes, this urban sinkhole grotto is a mini-paradise.

These azure waters were thought to lead to the Mayan Underworld.

A nondescript building that's been functioning as a speakeasy for nearly a century and a half.

It's not your typical library, memorial, or book store.

A marvel of Byzantine engineering under the streets of Istanbul.

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

Playable, historic pinball machines fill this Alameda museum.

The sister plane of the C-123 shot down during the Iran-Contra Affair has found a new purpose in retirement.

Astounding collection of coin-operated games and automata.

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