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

Though difficult to access, this stunning cave has a place in Scotland's poetic history.

The first and only carousel with a lineup entirely of insects.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Wander around the extensive remains of this 12th-century medieval church.

A building-sized painting of the renowned 19th-century American abolitionist.

You can get anything you want at the former site of the restaurant immortalized by Arlo Guthrie.

This enormous steel tube is the biggest speaking horn in the world.

A former coastal watch post has been turned into a bothy with unrivaled views of the sea and its inhabitants.

Two large-scale sculptures of Adam and Eve greet visitors in the nude at the Time Warner Center in NYC.

During the American Revolution, this mansion hosted failed peace talks between the British and Americans.

Where the embers of the Big Bang were first detected.

These unassuming lighthouses have seen the first reading of the Pledge of Allegiance, the first wireless transmission, and more than one mystery.

A glimpse into the sacrifices of military members during World War II.

The eccentric mansion of one of the most popular horror authors of modern times.

Nestled in the woods lies this land art project: a hybrid between park, maze and natural monument.

A tribute to long time Venice Beach resident, artist and actor Dennis Hopper.

A Cold War site complete with rusty structures, hiking trails, and beautiful views.

Martha's Vineyard's most beloved speakeasy sells late-night pastries.

Stone monkeys adorn the buildings of this former estate.

A relic of the Cold War in Chicago.

Stained-glass windows inspired by Vincent van Gogh's paintings decorate this church in the town where the artist's career began.

The aggressively banal name of this underground fortress of bureaucracy does little to evoke its truly surreal existence.

The actor best known for slapstick comedy is memorialized in his home town.