These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

The indecision over what to place in this square was immortalized with a plaque.

A bronze tribute to a legendary Californian, the self-proclaimed "Emperor of the United States."

Whimsical cookie-themed plaques mark the birthplace of the Fig Newton.

Located in a Civil War era building, this café is engrained with the spirit of Edgar Allen Poe.

Shelves covered in dozens of coffee bean varieties fill this North End institution.

This restaurant offers a side of antiques, curios, and a bathroom chock full of owls.

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.

A Belgian self-built tower inspired by the Bible and ancient civilizations.

A toy store with a century-long history preserves the craftsmanship of playthings of the past.

The most decorated dog of World War I is preserved in the Smithsonian.

This wild explosion of color on a disused water tower tells the whimsical tale of a curious puffin.

The sculpture of the deceased cockatoo flops atop its personal plinth.

The remains of Martha, the last known passenger pigeon, serve as a tool to educate about conservation.

This five-foot-tall bronze bird is a memorial to a species that was hunted out of existence.

These enlarged egg sculptures represent the native birds of eastern Iceland.

One of two giant blue cockerel statues erected with an intentional double meaning.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

Texas's oldest bakery serves authentic German pastries, including legendary strudel.

A former utopian healing center created by a huckster and built by derelicts.

New York's oldest magic store.

One of New York's best collections of pinball is hidden in a secret bar in the back of this laundromat.

The first and only carousel with a lineup entirely of insects.