A whimsical monument deep in this park commemorates the groups that helped build it.

This once-grand marvel of engineering is now 41 miles of scenic hiking trail.

137 graves holding New England's earliest residents.

Yale University's home for rare works, including the mysterious Voynich Manuscript.

An archival collection of over 2,200 case studies which includes human brain specimens and tumor specimens.

This landmark cemetery in Boston was created more than 300 years ago.

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

The "lovely red Vega" of the legendary record-settling pilot.

Major tourist destination known for its bubbling mud-pools and hot thermal springs.

A multi-storied adobe complex has been inhabited for more than a thousand years.

A unique geological area spiked with wind-carved rocks that resemble teepees.

An old saloon in the West filled with history, and according to some, a few dozen ghosts.

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

Mountain where Jesus was first tempted by the Devil.

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

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

The world's largest wooden structure.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

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

A terrific purveyor of natural history objects and curios.

Tucked in the back of this amazing antique store is an important piece of medical history.

A library and shop devoted to the body, mortality, and bringing to light forgotten or neglected histories

A world-class collection of mechanical musical instruments and automata.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.