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

Unconventional site where the tracks of Zurich tramcars intersect.

An intricately carved Viking church overlooks a glistening fjord.

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

Rising from the sea like a stone monster.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

Rome's semi-secret peephole vista is also a former Crusader stronghold.

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

France's most famous cemetery, with some of its most curious tombs.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

Visitors to this library are in for a real-world education in modernist architecture.

This museum remembers the tough Mormon trek across America through an intriguing array of artifacts.

Pyramid home to an obscure religious group that practices modern mummification.

Here lies Lilly E. Gray, an alleged "victim of the beast," but the reason long remained a mystery.

A towering tribute to decisiveness stands on the spot where Brigham Young and his followers decided that this must be the place.

The largest wildlife crossing in Utah allows local fauna to safely traverse the six-lane Interstate 80 at Parleys Canyon.

This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.

A replica that won't float away.

Largest man-made excavation on earth!

Largest collection of mounted dinosaur specimens in the world.