Although it appears much older, this castle-like tower is actually a Georgian-era folly.

Ancient structures used to make and preserve ice in the deserts of Persia.

This dreamlike museum is filled with the works of an influential surrealist artist whose name you may have never heard.

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

The eerie remnants of an ancient forest were hidden under the sand for centuries.

The oldest candy store in the world has been selling traditional sweets since 1827.

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

Countless grotesque faces stare out from this eerie Prague art wall.

A market built atop boats is one of the few floating holiday markets in Europe.

One of the biggest markets in Asia, under one of the continent's largest domes.

Popular tourist destination where witches in dark hats sell dried llama fetuses for good luck.

You'll find just about anything in this funky Tbilisi flea market.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

On any given day this sprawling market houses literally tons of government-regulated gold, gems, and precious metals.

An exquisite and eclectic selection of African masks stands out within a massive woodcarving marketplace.

This amazing example of Valencian Art Nouveau looks more like a cathedral than a public market.

Behind one of the world's most impenetrable vaults is a massive collection of retail silver.

A historic trade hub teeming with gorgeous architecture, colorful goods, and vibrant designs.

This weekly market in the remote oasis city of Hotan still has the atmosphere of the old Silk Road.

Tables of secondhand books fill the inner courtyard of this 17th-century stock exchange.

This weekly bazaar started in the 1960s as a way for hippie travelers to barter their goods.

Every day is like Christmas on this street where the traditional Neapolitan nativity scene comes to life.

The sculpture is made of more than 100,000 knives collected to raise awareness about violence.