Along this wire fence, travelers have been leaving a particular memento since 2012.

A restaurant devoted to "trouser grip" wrestling, an ancient form of Viking wrestling that is Iceland's national sport.

Three columns of volcanic rock shoot out of the ocean.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

This elegant arc of a waterfall marks a religious turning point.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

Rising from the sea like a stone monster.

Medicinal spa created with the discharge from a geothermal energy plant.

Iceland's tribute to its thankless civil servants.

This tiny museum's sizable collection is jammed into a former underground public toilet.

This stunning concert hall has become a symbol of Iceland's national recovery.

A bit of the Berlin Wall was gifted to the Icelandic capital to commemorate the 25th anniversary of German reunification.

An encyclopedic collection of mammal penises.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

Less a museum than a bizarre fantasy world created by artists and engineers.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

This 38-drawer structure claims the superlative title, but it isn't the world's only giant filing cabinet.

This giant monument of the RCA mascot is a beloved fixture in Albany, New York.

A mythical chimera first sculpted in 1936 as a mix of the main animals of Texas livestock.

A "Texanic" (gigantic Texas) collection of Art Deco architecture at Dallas' historic Fair Park.

A serene temple with stunning stained glass hides in downtown Dallas.

The final resting place of an outlaw, whose legend grew after death.