On the Oregon coast there is a natural hole that seems to be draining the sea.

Oregon's unexpected high desert, displaying layers of time in a colorful show.

A traveling postal dog covered 48 states and more than 140,000 miles, and he lives on as taxidermy, patched up with a rabbit's foot and a pig's ear.

This centerpiece of the Hollywood & Highland shopping center is a recreation of a long-lost movie set.

A hidden gem on the lawn of the U.S. Capitol Building designed by landscape architect Frederick Law Olmsted.

Railroad officials in the early 1900s sought to spare travelers the sight of Roman soldiers’ private parts.

An overlooked memorial honoring the local Washington residents who died in World War I.

This mysterious structure by the Washington Monument is a flood barrier designed to protect the White House against rising waters.

Look closely and you’ll notice that the color changes a third of the way up the tower.

The unique traffic pattern named for an influential urban planner is also known as the Pedestrian Scramble.

D.C.'s first central library was born out of a chance encounter with the philanthropist whose name it bears.

Two thousand artifacts from around the world collected by one woman who loved to travel.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

A tiny plaque marks the location of the water source that facilitated the birth of modern-day Boston.

Dedicated to one of the darkest moments in Irish history, this memorial has faced its fair share of backlash.

This statue intended for children to enjoy became a minor political spat.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

The Boston square dedicated to the dark poet who was born nearby.

It looks like a whale, it's part of Yale, and it's best-known by a nickname you can probably work out for yourself.

Yale University's home for rare works, including the mysterious Voynich Manuscript.

The world's largest public collection of PEZ memorabilia.

Hikers can still stroll beneath the long conveyer of this abandoned mining facility hidden in a West Virginia river gorge.

These engineering masterpieces are a dominant feature of the Belfast skyline.

This giant sculpture is both loved and disliked by the local community.