Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

Elevated freight railway turned wildly successful urban park.

A naturally mummified 2,000-year-old man.

Paranormal activity on the great lakes.

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

Over 50 whirling pools left behind from the glacial age.

The convergence of two currents makes this a surprisingly pleasant getaway in the Arctic Circle.

A metal ring in the middle of the road marks the exact spot where the Soviet satellite crash-landed in 1962.

A remnant of the last Ice Age, this lake is surrounded by fascinating rock formations.

Inside the Wayne County airport is an amazing collection of lights and sounds.

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

A simple but powerful tribute to the 20 victims of the 1692 witch trials.

143 feet of leaping muskie whose mouth can be used as a wedding venue.

The titular fictional logger only inhabits this otherwise historically focussed museum via a piece of fiberglass kitsch.

Dakota legend claims this locally iconic pinnacle was once part of a sacred burial site that was cleaved in two.

Giant six-pack could provide one person a six-pack a day for 3,351 years.

The building was originally a gas station built to resemble a Japanese tea house.

Once the future of underwater combat, this old sub is now open for visitors to muck around in.

The only remaining historic maritime signal station in the United States.

Medicinal spa created with the discharge from a geothermal energy plant.

A reconstructed farm shows what life was like in Norway 1,500 years ago.

Spanish architects used seized Muslim gravestones to rebuild parts of the fortress.

The final resting place of the great navigator, or maybe his brother.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.