The celebrated eyesore created by starry-eyed sweethearts.

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

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

The very center of Paris is surrounded by a bevy of strange good luck rituals.

Paris' linguistic guide to the international language of, yes, love.

A museum and shop on Bourbon Street located in the former home of the second Voodoo Queen of New Orleans.

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

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

San Francisco's oldest surviving monument and meeting place for 1906 survivors.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Every equinox this Maya pyramid puts on a spooky ancient light show.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

A magical sinkhole on the Yucatán Peninsula is adorned with mini waterfalls and hanging vines.

Despite the groans of archaeologists, this astounding groups of Bronze Age petroglyphs have been painted red for tourists.

A wall of chewing gum moonlights as collective art.

A museum dedicated to the history and exploration of both popular music and science fiction.

A walk through the historic city center, under the streets of Seattle.

A collection of noses tucked inside an art museum reveals how times have changed.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

Hans Christian Andersen for the postmodern world.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Copenhagen's celebrated theme park and gardens.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

A restaurant and observation deck built in a unique broadcasting antenna.