The highest point in New Jersey is marked by a massive, if simply named, obelisk.

A pair of 19th-century granite markers symbolically record where the state boundaries of New York, New Jersey, and Pennsylvania intersect.

Historic town settled in the 19th century because of its convenient location along a popular coal transport route.

Once in a state of dilapidation, this candy-inspired fortress is now being revived.

Tucked behind New Jersey's abandoned Gingerbread Castle lie the eerie ruins of a once-flourishing paper mill.

One of New Jersey's oldest churches is a historical treasure trove.

A small structure built from used railroad ties honors the short term of America's 20th president.

This aromatherapy shop and mini-museum cofounded by the Sigur Rós frontman documents Icelandic history through scents.

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

A relatively obscure antihero from the Marvel Comics universe adorns a wall inside Iceland's main airport.

This former monument to an invented Iraqi victory was turned into a military camp during the subsequent invasion.

The only intersection in America where the buildings on all four corners were built pre-Revolutionary War.

This beautiful 19th-century temple stands atop the ruins of its predecessor.

On a winding Vienna side street, one museum has turned their windows into a monument to history’s peace-minded heroes.

The holes in this wall provide a glimpse into Jewish life in Budapest, both past and present.

The reconstruction of this prominent building fulfilled a long-written command.

This celebration of Latvia’s freedom and independence avoided demolition over half a century of Soviet occupation.

In the middle of a Vienna square, Roman ruins dating back some 2,000 years are on display.

Baroque celebration of the end of the Great Plague of Vienna.

A memorial to the atrocities of the People's Socialist Republic of Albania.

An Albanian monument to the Communism that nearly crushed the country is now a crumbling wreck.

Legends surround an ancient tree trunk riddled with nails for good luck.

These two 15th-century metal rods allowed people to check if they were swindled or not.

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.