One of the last free public hot springs is decorated with hippie art.

This spiritual landmark for practicers of Shamanism is drenched in milk and vodka and covered in blue scarves.

This ancient village and its adjoining cemetery have a beautiful history of death and remembrance.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

The entire length of the border is marked by a 20-foot-wide slash through the trees.

The only land territory disputed between the U.S. and Canada.

An ancient tunnel in Jerusalem built to redirect water in the event of a siege is one of history’s great architectural innovations.

An ancient city exhumed from the depths of the ocean.

Submerged trees jut ghost-like out of an idyllic turquoise mountain lake.

A massive underwater sinkhole made famous by Jacques Cousteau.

Kentucky, Tennessee, and Virginia meet at this point in the Cumberland Gap.

An almost life-sized elephant named Ms. Ellie greets visitors at this jumbo-themed museum.

This extensive collection of dead bugs may be the world's most idiosyncratic and personal insect museum.

This dramatic sea spire is home to the world's rarest insect and is part of the lost continent of Zealandia.

Living fossils in this remote Australian bay provide a glimpse of what Earth may have looked like 3.5 billion years ago.

A lovers' beach, tucked below the surface of the island, provides a safe haven for romance.

One man's vast collection of artifacts and ephemera from matchbooks and postcards to vintage neon signs and cars.

This frequently-photographed waterfall takes only a short hike to visit.

How this Pine Barrens hill got its name is uncertain, but on a good day the view from the fire tower is crystal clear.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

One of the world's southernmost bars.

Fire meets ice at the southernmost volcano on Earth.

The world's largest neutrino telescope searches for secrets of the universe at the South Pole.

This pair of Australian "waterfalls" appear to be falling straight across the land.