From economic backbone of a community to deadly diving hole, these former stone quarries are now a park for rock climbers and graffiti artists.

This small shop walked so America could run on Dunkin'.

Since 1947, this living history museum has been providing an immersive look at life in Plymouth Colony.

This magnificent castle grew from a small Moorish fortress, and reportedly inspired two iconic Disney castles.

This nearly 200-year-old restaurant's history includes an exiled French prince, JFK, and a very hungry Daniel Webster.

This sweet Southern elixir comes from what may be the oldest grape vine in North America.

This ancient Spanish castle sits high upon a hilltop.

In the fictional world of Kcymaerxthaere, celestial wonders marked a portal to a powerful route of travel at this site in Madrid, Spain.

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

In 1958, an MIT fraternity pledge laid down on this bridge and instituted a new, unique unit of measurement.

Ice cream stand, snack bar, and time capsule of milk conveyance.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

A serene plaza that commemorates one of the Granite State's most iconic figures.

The artwork is a community's ode to the "father of Irish tourism."

Look closely and you’ll notice that the color changes a third of the way up the tower.

While most wind tunnels test scale models, the "Cave of Winds" was large enough for actual airplanes.

Architecture lovers won’t stop touching the National Gallery's 19.5 degree marble prow.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

A lush indoor jungle fills this bustling Madrid transportation hub.

Local legend says Isaac Newton built this footbridge without any screws, bolts, or nails.

Spain's unique Mosque-Cathedral has been a place of worship for both Muslims and Christians throughout its history.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

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

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.