Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

A historic freight system that found the true gold rush is in tourism.

A take-out restaurant that only serves cuisine from countries with which the United States is in conflict.

Over 120,000 curious objects that have shaped our modern world.

This former insane asylum now holds a pathological anatomy museum.

One of the oldest living oak trees in the Southeast.

This lab's maddening silence is good for business but bad for sanity.

Detailed sandstone carvings show an array of symbolism and adorable animals.

A stunning, abandoned limestone quarry in southern Indiana provided the stone to erect the Empire State Building.

A 30-year-old Sycamore tree grown from a seed taken to the moon and back.

Once thought to be the mysterious work of a witchy prophetess, a well with unusual properties turns objects into "stone".

Neoclassical Revival mansion and set of horror cult classic Phantasm.

Cryptic messages embedded in the New York City sidewalk.

A licentious look into Singapore's past, full of disorderly bric-a-brac and disreputable characters.

A whimsical, but often overlooked clock in Park Avenue.

A series of waterfalls so massive they straddle the border of Argentina and Brazil.

Salute the leader of the proletariat.

This cemetery features modernist statues as strange as its name.

A celebration of capitalism in Midtown.

Try not to get slimed in Tribeca.

Walk into the 19th century without leaving Brooklyn.

A self-explanatory attraction allows fans to respectfully remember and honor a comedy legend.

A toy store with a century-long history preserves the craftsmanship of playthings of the past.

A former milk-delivery driver and his wife turn their home into a glimmering mosaic.