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

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

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

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

San Francisco's newly reopened hands-on science museum.

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

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

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

Elevated freight railway turned wildly successful urban park.

This former Masonic hall has been turned into an art project that uses even more metaphysical iconography.

Museum dedicated to awful artwork.

Impossibly life-like natural history models created out of glass by a father and son.

This peaceful Massachusetts graveyard was one of the first "garden-style" cemeteries in America.

This is the house that spite built.

Rising 30 feet in the air atop Quarry Hill, the Old Powder House is the oldest stone building in the state of Massachusetts.