A quiet memorial marks the spot where the victims of the Salem Witch Trials were executed.

Despite its extensive history, this fort saw little to no combat.

Once the largest gravity dam in the world.

The site of the Andover Witch Hunts, which ended with more witch accusations and arrests than Salem.

Every December the Wannalancit Mills lights a Christmas Tree over the old mill's smokestack.

All that remains of the former site of the final home of president Franklin Pierce.

A small obelisk marks the spot where Captain Sam Greele was killed by a falling tree.

The ghost town that was one of New Hampshire's first settlements now exists as a park detailing its history.

An ancient Roman relief beautifully preserved on the façade of a house.

The official motto of Luxembourg reminds passersby of the Luxembourgish commitment to their national identity and sovereignty.

Statues of a fire-breather, a clown, and a whole performing troupe celebrate Luxembourg's creative side.

Some believe that the artist behind this whimsical statue inserted his own likeness as a way to discreetly flip the bird.

This small chapel built into rock is the oldest place of worship in Luxembourg.

This magenta statue commemorates the legendary marriage between a mermaid and the city's founder.

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

Switzerland's oldest public observatory is an important part of the Zurich cityscape.

Unconventional site where the tracks of Zurich tramcars intersect.

The oldest surviving wooden bridge over Rhine lets travelers cross easily from Switzerland to Liechtensten.

Browse through a century of this principality's first popular export.

Liechtenstein's royal family calls this medieval alpine castle home.

Depending on how it is measured, this lighthouse can claim to be the tallest in Europe and the tallest conventional lighthouse in the world.

Massive galleon from a box-office bomb docked in Genoa.

Once home to one of the oldest banks in the world, this building is also where Marco Polo's famous travelogue was written.

This cathedral hides a sculpted dog that determines your fate and an unexploded shell from World War II.