This unassuming layer of clay boasts an out-of-this-world origin story.

The world's only above water sand volcano, believed to once be the bathtub of a priest.

The bombed out remains of the old church were kept intact next to the new one, as a reminder of the futility of war.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

A small museum packed with specimens from important fossil sites and minerals from historical pegmatite quarries.

The oldest surviving botanic garden in the United States.

The first geometric self-supporting spiral stairs in Britain are a truly beautiful sight.

Live data is transmitted from the Atlantic coast to instantly recreate the ocean waves in this fountain at the NOAA headquarters.

In this museum, visitors are invited to touch the art.

This museum preserves over-the-top masterpieces that once qualified artisans for membership into a medieval guild.

A beautiful geyser under environmental threat.

The home of the morbid art of corpse plastination is open for visitors to view the fascinating, but stomach-churning process.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

This Dutch-styled residential building was originally a cocoa company's World's Fair showpiece.

Every day is like Christmas on this street where the traditional Neapolitan nativity scene comes to life.

One of the world's premier laboratories for hydraulic engineering research takes full advantage of the water's power.

The former locus of Boston's high culture has been shuttered and buried for over 70 years.

Dim sum, served in a grand old theater.

The John Snow Memorial marks the epicenter of London's 1854 cholera epidemic.

A series of labyrinths in the Nevada desert inspire meditation and calmness.

The granite head appears to be deep in thought and half buried in the ground.