19th century cemetery hidden in Brooklyn's Prospect Park.

Herbert Hoover's "Brown House" rural presidential retreat was a PR disaster amid the start of the Great Depression.

Outdoor exhibits explore the contributions of European, African, and indigenous peoples to American frontier culture.

This historic mansion was built as a symbol of love between a husband and wife.

Take an otherworldly journey in a school dedicated to out-of-body experiences.

DIY collection of eclectic holdings.

A collection of 100 brains preserved in jars on the UT campus.

This eclectic Austin curiosity shop is home to all things strange and unusual.

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

An extraordinary house museum and cabinet of curiosities in the heart of Florence.

An incredible menagerie of more than 3 million taxidermied animals at the oldest science museum in Europe.

One of Europe's largest supercomputers is housed inside of a disused chapel.

Week-long block party becomes a competition for the best decorated street.

This stunning iron gate designed by Modernist architect Antoni Gaudí is filled with mythic symbolism.

Bask in the 19th century grandeur of an eccentric Freemason millionaire's private gardens.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.

An open-air "garden" of mural art that changes weekly.

Mountain where Jesus was first tempted by the Devil.

The block of aged dairy is probably still edible after 2,300 years in a peat bog.

A sacred well steeped in Pagan roots on the West Coast of Ireland.

A corkscrew-shaped barn in Ireland.

Obelisks and stone pineapples in the Irish countryside.

This Neolithic passage tomb forms part of a World Heritage Site.