Kings Cross Station pays tribute to its role in Britain's best-selling book series.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

Check the time in 145 countries at once with this East German relic.

Cold war icon and onetime "hole" in the iron curtain.

Go surfing on this urban wave, "hacked" by local surfers.

The prototype for all Nazi concentration camps.

This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

Historic medieval fortified city in southwest France.

Holy Grotto of Montserrat Monastery holds one of Europe's mysterious black Madonnas.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

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.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

An early 20th-century bullring converted into a modern shopping center.

Bell tower juts out from a village buried under a lake.

Beautiful Austrian natural history museum with carved ceilings and row after row of ancient taxidermy.

Swarms of dainty flying insects swarm into the Petaloudes Valley to get busy.

This stone tower was built to protect Crete from incoming pirates.

This daunting 1st century fortress was purportedly the site of one of the most dramatic revolts of the Jewish-Roman wars.

The tallest waterfall in the Judean Desert is named for its connection to a biblical figure.

As the Dead Sea continues to deplete, massive sinkholes open along its banks.

A "miracle" that seems to produce more holy fistfights than holy revelations.

Partially collapsed lava tube and cave system complete with concert hall, underground pond, and unique albino crabs.