This eccentric folly house was designed by Romanian thinker Bogdan-Petriceicu Hasdeu, with a helping hand from his deceased daughter's spirit.

A fire once nearly devoured this gorgeous 14th-century Gothic cathedral.

Memorial to the lost dead of Gdansk, whose resting places were destroyed during World War II.

Sacks of potatoes, made of cast stone, mark where the iconic potato sheds once stood along the river.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

One of the now-less-hidden floral gems of the "Emerald Necklace."

A store full of vintage and indie toys designed to bring out the kid in even the crustiest of adults.

Continuing the tradition of the dime museum in style.

Pensacola's UFO home has withstood many hurricanes—just as the experimental 1960s design intended.

Once one of the largest producers of pig iron in the world.

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

A snapshot of the city's fascinating voodoo culture.

An old-timey wax exhibition campily depicting New Orleans legends and scandals.

This largely forgotten piece of Cold War history stands hidden in the woods just north of the Mississippi Gulf Coast.

The simple gravesite of a Romany clan leader is dotted with offerings, including cans of her favorite drink, Crush orange soda.

A preserved stretch of ancient fossilized trees with an impressive gem collection to boot.

A historic Civil War estate-turned-museum looks back on the Confederate States of America.

A grandiose octagonal home crowned by a large dome stands out among the antebellum mansions.

Secret gardens just a few miles from downtown Atlanta.

The world's first time capsule lies behind a welded steel door in Atlanta.

The largest cemetery in the American Southeast is a hidden gem near the heart of Atlanta.

An underground magnet for ever-changing street art.

This award-winning men's bathroom was just too beautiful to not allow women to see.