The final resting place of a space program monolith, soon to be unveiled again to the public.

Bad farming practices caused this unnatural natural wonder.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

The world's only full-size replica of the research hut used by Douglas Mawson for his 1911-14 Australasian Antarctic Expedition.

This Florida sinkhole hides a rainforest-like micro-environment in its depths.

This engineering marvel is the longest bridge in Canada and one of the longest spans in the world.

This remnant of an old railroad is the tallest surviving wooden trestle bridge in Victoria.

This ancient rock shelter features cave art and is one of the most culturally important sites in the country.

Rare recess caves fill this unbelievably beautiful Ohio park.

See massive fossils that are over 200 million years old in northeastern Arizona.

The world's longest covered bridge is a quaint and incredible wooden tunnel.

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

Olive’s garden serves up a seemingly endless helping of outback delights.

Taxidermy of the racing horse with a huge heart, who inspired hope in the Depression.

Go inside the house that inspired L. M. Montgomery to create one of literature's most beloved heroines.

These flying foxes dangle from the trees around the library like fuzzy black fruit.

The city’s oldest gateway to the galaxy lies at the entrance to the Royal Botanical Gardens.

The largest collection of Indigenous Australian artifacts in the world, and the rare museum where wood-and-glass cabinets have trumped interactive exhibits.

The abandoned remains of a once popular zoo, and the grave of the last known Tasmanian Tiger.

A much more welcome kind of snowbird vacationer, manatees camp out in these springs every winter.

Popular tourist destination now stands as a memorial to Sam the koala.

A wealth of plants and horticultural curiosities fill this charmingly antique museum.