The complex has been abandoned since the Croatian War of Independence, barring a stint as a set for 'Game of Thrones.'

A trove of century-old litho stones from the Puck Building's printing days were discovered behind a cellar wall, and are now hanging in the store.

Plot your trip through the city on the sidewalk.

A terrific purveyor of natural history objects and curios.

The medieval network of canals hidden underneath the city is opened to explorers each year.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Legend has it that President Grant’s frequent drinking in the lobby gave rise to the term “lobbyist.”

A monument celebrating the idea of reaching inaccessible places.

Florida's oldest bar was once a morgue, complete with a hanging tree and gravestones.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

Home of Philip Johnson, one of the 20th century's most influential architects.

Historic Hull Street was actually the first street with a proper name in the Boston area.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

Rumored to be the famed pirate's lookout tower, this historic stone structure is now just watching for tourists.

An ancient knight and a symbol of the city's freedom.

A massive sea stack famous for its appearance in The Goonies.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

The oldest garden in Prague, once part of an medieval orchard.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Macabre astrological automaton clock dating to the late 1400s.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

A miniature train-ride through Slovenia's largest cave system.