Each August, one of the largest religious (and food) celebrations in the country is held in Boston.

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

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

The site of Paul Revere's historic two lantern warning.

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.

Dim sum, served in a grand old theater.

Two thousand artifacts from around the world collected by one woman who loved to travel.

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.

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

Two very green residential towers cleaning the air in one of Europe's most polluted cities.

A lover's walk between hilltop towns, decorated with graffiti love notes.

Erotic art covers the walls of the largest ancient pleasure palace.

Five candy-colored villages on the Italian Riviera.

Ancient snack bar of the Roman Empire re-opened.

This former Roman Catholic Church still contains the embalmed hearts and organs of 22 popes.

Hidden beneath the famous St. Peter's Basilica is a veritable city of the dead that may hold the remains of St. Peter himself.

Go inside to really appreciate this 500-year-old technological masterpiece.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

Go surfing on this urban wave, "hacked" by local surfers.

Daily jousts and dancing barrel makers in Munich's mechanical clock.