The tunnel's elegant proportions keep you snug with no claustrophobia freak-out.

The romantic botanic tunnel feels like a well-kept secret.

This 5-by-6-foot wooden hut is the smallest historic post office in the U.S.

Typewriter museum housing more than 1,500 machines preserves the history of the grandfather of computers.

A little piece of Paris in the sultry south of the U.S.

This quiet chapel was central to a community of settlers who reclaimed an abandoned fort.

Inside this community-run museum, visitors are treated to the history of toys and games.

The world’s highest ski resort was deserted after an 18,000-year-old glacier melted away.

Spiral-bound community recipes and antiquarian gems mingle at this small East Village shop.

This museum tells the history of Day of the Dead sugar sculptures.

A fascinating community art piece created by students, teachers, and noted Philadelphia artist Isaiah Zagar.

This shop for all your super spy needs hides an educational secret.

This orchid sanctuary protects countless varieties of the flower, from the huge to the microscopic.

A way to take your secrets to someone else's grave.

This (occupied) house is 10 feet wide and full of spite.

The best-preserved example of a unique structure in Nubian architecture.

This bar is filled with Star Wars merchandise from around the world, all of it unlicensed knockoffs.

The first hand-illuminated, hand-written bible since the invention of the printing press.

This salad has two key ingredients: hearts of palm and green ice cream.

Built as a gift to the hottest tastemaker of the time, these hidden quarters remain an Art Deco showpiece.

A beautiful waterfall and beach where precious stones are plentiful.

This contemporary art museum is filled with other, smaller museums, which feature work from artists primarily in the Pacific Northwest.

Gold Rush ship-turned-hotel buried underneath San Francisco's financial district.

A historic Christian shrine nestled within a spectacular natural cave.