A statue of the English poet for whom this Delaware town is named is ritually dressed in seasonally appropriate clothing.

One of the world’s smallest bars, just 13 square feet, is brimming with speakeasy flair.

Where experiments are conducted on all things wood.

A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.

This remarkably well-preserved Incan city managed to survive the conquistadores.

This large midwestern cavern features impressive rock formations and an underground waterfall.

An eerie former warehouse turned cistern turned movie set.

The Underground Railroad passed right through this historic Brooklyn Heights church.

A fascinating little museum dedicated to the thousands of chemical substances concealed in our food.

2,000 barrels of aging beer hidden in a warehouse at the Brooklyn Navy Yard.

The largest dinosaur trackway in North America is tucked away among this canyon's ghosts and archaeological gems.

A cabin completely covered in coffee mugs, where visitors are welcome to leave one of their own—if they can find an empty nail.

The homestead of American patriot John Adams.

An abandoned railroad tunnel forgotten by time awaits inquisitive hikers.

Though technically an illegal structure, this eclectic DIY apartment complex is beloved by its residents.

An intricately carved Viking church overlooks a glistening fjord.

A modern Nordic Pompeii on the Icelandic island of Heimaey.

A monument to a working class martyr.

A 19th-century time capsule of travel, fiction, and historic texts still available to the public.

A giant cat slowly prowls the parking lot of Zebulon's car dealerships.

A massive cave complex boasts some of the clearest water (and most charming bats) in the world.

Parking garage where Bob Woodward met Watergate source "Deep Throat."

A plaque marks a former safe house on the secret route, now hidden next to a McDonald's.

Locals believe the purity of this huge, untouched Arctic lake could be the salvation of human civilization.