A beloved horticultural oasis on the grounds of a wealthy family's former estate.

Although built to generate electricity for Marylanders, this dam has become an all-you-can-eat buffet for American bald eagles.

The site where Poe "in great distress, and ... in need of immediate assistance" likely died.

A local farm's collection of unusual structures from a now defunct storybook amusement park.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

Walk in the footsteps of the gods and straddle two tectonic plates.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

Medicinal spa created with the discharge from a geothermal energy plant.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

Noirish green neon marks the location of one of the oldest private detective agencies in France.

Statue of death tucked in the University of Medicine courtyard.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

World's first "penitentiary," meant to be humane, drove men insane.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

The highest point in Delaware is located under a trailer so this marker across the street will have to do.

This local gem houses the largest collection of pre-Raphaelite paintings outside of the U.K.