Berlin's old airport.

A fascinating insight into daily life in the Eastern Bloc.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

An exotic reptile facility showcasing some of the rarest, most venomous snakes in the world.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

Granting the right of way to ships over surface traffic since 1917.

This Seattle store is packed with all sorts of curious creatures and creations.

A commemorative mural in this tiny Ballard park honors the neighborhood's rich Scandinavian ties, particularly with Seattle's Norwegian sister city Bergen.

The tale of a strong-willed woman who stood her ground when the commercial world came rumbling in.

A museum and doll store featuring a surreal and super sanitized version of where babies come from.

Tour the sci-fi-esque reality of governmental disease management.

Suspended above the ground in a thicket of towering Georgia trees is a modern architectural wonder.

3/4-scale model of the White House in Atlanta, Georgia.

This small cemetery is all that remains of Atlanta's first Black communities.

Secret gardens just a few miles from downtown Atlanta.

The largest cemetery in the American Southeast is a hidden gem near the heart of Atlanta.

Healing Springs that once ran red with soldiers' blood.

The upstairs reading room is packed with millions of rare books, literary manuscripts, and historical treasures.

This failed condo development was reborn as a street art hub.

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

Locals dubbed it the "Owl Building" because of its bird-like appearance.

Continuing the tradition of the dime museum in style.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.