Ancient human, animal, and geometric figures drawn in the earth.

Half of a waterfall goes into the river while the other half seems to disappear.

A good place to research the Freemasons, esoterica, occultism, and hermeticism.

This imposing Masonic temple a mile from the White House was the first public library in Washington, D.C.

The mysterious white squirrels of this Illinois city are treated like sacred cows.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

The factory for the popular Dumbo location, the Greenpoint shop is a quiet gem.

A Pythagorean funhouse that tries, successfully, to prove that math is the coolest thing ever.

A hands-on traveling collection of the innovative devices of yesteryear.

A miniature rainforest is growing inside of a Midtown Manhattan office building.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

Order scoops of pandan, lychee, and black sesame at this family-run institution.

New York's oldest magic store.

Upside-down trees serve as natural flower pots in this hanging garden of Alaska.

A metal tree emits eerie, melodic notes on top of Lancashire's Crown Point.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

A Seussian sculpture made of brass instruments.

When the rain falls, this drain system turns into a musical instrument.

A whimsical sensor instrument for Minneapolitans to play on their walks to work.

This road in the Great Smoky Mountains was supposed to assuage a displaced community, but ended up a $52 million dead end.

Once a menacing challenge for trailblazers, this trail is now the most scenic drive in Utah.

This huge concrete map of Scotland was built as a thank you gift from a Polish soldier.

Low tide reveals 8,000-year-old rock carvings in Southern Alaska.